Each stage ends with its own short list. This page joins them, so you can find a doc again without remembering which stage it was in. A resource that two stages use is listed once, under the first stage, with a chip for each stage that uses it.
127 resources
Stage 1: GTM data architecture and reverse ETL
- Stripe docs: Receive events in your webhook endpointDocsFree Stage 1
Signatures, retries, duplicates and ordering from the source.
- Stripe docs: Idempotent requestsDocsFree Stage 1
The shortest correct explanation of idempotency keys.
- HubSpot docs: Custom object records API guideDocsFree Stage 1
Batch upsert with a unique property, with request bodies.
- HubSpot docs: API usage guidelinesDocsFree Stage 1
Rate limits per tier for private and public apps.
- HubSpot docs: Account types and developer test accountsDocsFree Stage 1
How to get a free test CRM with Enterprise features.
- Hightouch docs: Sync types and modesDocsFree Stage 1
Clear definitions of update, insert, upsert, archive and mirror.
- Fivetran Activations docs: SyncsDocsFree Stage 1
The Census lineage, with upsert, mirror and append behaviors.
- dlt documentationDocsFree Stage 1
The Python-first way to build an ELT pipeline into DuckDB.
- Bloomberry: 1,000 GTM Engineering jobs analyzedResearchFree Stage 1
What employers ask for: tools, skills and pay.
- Trailhead: 360 Platform API BasicsCourseFree Stage 1
A hands-on Salesforce REST API module of about 1.5 hours.
Stage 2: Signal and intent pipelines
- Slack: Incoming webhooksDocsFree Stage 2 Stage 4
The official reference for URLs, payloads, errors and limits.
- Segment: Track specDocsFree Stage 2
The event shape most tools copy, with a full example payload.
- Segment: Webhooks destinationDocsFree Stage 2
Signing, retries and the 5 second timeout, with verification code.
- Apache Kafka: IntroductionDocsFree Stage 2
Clear definitions of event streaming, topics, partitions and retention.
- HubSpot: Using buyer intent dataDocsFreemium Stage 2
How a major CRM does reverse-IP identification, with credit costs.
- IPinfo Lite APIDocsFree Stage 2
Free unlimited country and ASN lookups for the no-budget path.
- 6sense 2025 B2B Buyer Experience ReportResearchFree Stage 2
A large buyer survey on when buyers contact sellers. Written by an intent vendor.
- Common Room: Bombora topic intentDocsFree Stage 2
What a surge score and weekly refresh look like inside a tool.
- UK ICO: Storage and access technologiesDocsFree Stage 2
Regulator guidance on consent for cookies, pixels and fingerprinting.
Stage 3: AI SDRs and Hyper-Personalization
- Claude structured outputsDocsFree Stage 3 Stage 7 Stage 10 Stage 11
The exact parameters, supported models and schema limits used in the code.
- Apollo API: People API SearchDocsFree Stage 3
The search call with real parameters and response fields.
- GitHub Acceptable Use PoliciesDocsFree Stage 3
The rule on using collected data for unsolicited email.
- Google email sender guidelinesDocsFree Stage 3
The primary source for the 2024 authentication and spam-rate rules.
- hiQ Labs v. LinkedIn, Ninth Circuit opinionResearchFree Stage 3
The primary opinion on scraping public data and the CFAA.
- Spear phishing with LLMs, validated on human subjectsResearchFree Stage 3
A controlled study of AI-written targeted email, with its small sample stated.
- Instantly Cold Email Benchmark Report 2026ResearchFree Stage 3
Vendor reply-rate benchmarks and the habits of top senders.
- GitHub REST API: eventsDocsFree Stage 3
The public events endpoint with its 300-event and 30-day limits.
- FTC CAN-SPAM compliance guideDocsFree Stage 3
The US rules for commercial email, in plain language.
- Yahoo Sender Hub best practicesDocsFree Stage 3
Yahoo's bulk sender rules for authentication and unsubscribe.
- RFC 8058: one-click unsubscribeDocsFree Stage 3
The exact headers behind one-click unsubscribe.
- Podcast namespace: transcript tagDocsFree Stage 3
How feeds link to transcripts you can read instead of transcribing.
- faster-whisperRepoFree Stage 3
The local speech-to-text library used for podcast audio.
- TechCrunch on 11x customer claimsArticleFree Stage 3
A case study in why you verify AI SDR vendor claims.
Stage 4: PLG telemetry
- Segment: tracking plan best practicesDocsFree Stage 4
Naming, casing and which events to track first.
- Mode: Facebook's aha momentArticleFree Stage 4
A retention-based method for finding the aha action.
- Mixpanel: magic numbers are an illusionArticleFree Stage 4
A sober view of the 7 friends in 10 days number.
- First Round Review: Slack's launch strategyArticleFree Stage 4
The source of the 2,000 messages claim.
- Pocus: the definitive PQL guideArticleFree Stage 4
Fit, usage and intent scoring and PQL segments.
- Pocus and First Round: 2021 Product-Led Sales Benchmark ReportResearchFree Stage 4
Survey data on how PLG companies add sales, plus the unsourced 5x sentence.
- Lenny's Newsletter: a good free-to-paid conversion rateResearchFreemium Stage 4
Free-to-paid benchmarks from 1,000+ products. Full data is paywalled.
Stage 5: Usage-Based Pricing (UBP) and Monetization
- Stripe docs: Usage-based billingDocsFree Stage 5
The official map of Billing Meters versus Metronome.
- Stripe docs: Record usage with the APIDocsFree Stage 5
Meter event limits, idempotency, error codes.
- Stripe docs: Billing creditsDocsFree Stage 5
Credit grant states, burn order and limits.
- Stripe changelog: legacy usage-based billing removedDocsFree Stage 5
The exact removed calls, so you can read old code.
- Metronome docs: API quickstartDocsFree Stage 5
A clean ingest API with batching and transaction IDs.
- Lago on GitHubRepoFree Stage 5
A full open-source billing engine you can run and read.
- OpenMeterToolFreemium Stage 5
Apache 2.0 metering, now part of Kong, with OpenTelemetry and LangChain collectors.
- Growth Unhinged: 2026 State of B2B SaaS and AI MonetizationResearchFree Stage 5
A 230 company survey on hybrid pricing, AI credits and margins.
- Gartner: $234 billion of enterprise application spend at risk from agentic AIResearchFree Stage 5
The primary source of the $234 billion forecast.
- Intercom: How Fin outcomes are billedDocsFree Stage 5
The fine print of a real outcome-based price.
- Deloitte DART: Measuring progress for revenue recognized over timeArticleFree Stage 5
The accounting rule behind recognizing what you can invoice.
Stage 6: RevOps and Attribution
- HubSpot: create attribution reportsDocsFree Stage 6
Current models and the tier each report needs.
- Salesforce Campaign Influence implementation guide (PDF)DocsFree Stage 6
Contact-role auto-association and the standard models.
- Adobe Marketo Measure attribution modelsDocsFree Stage 6
Exact weights for U, W and full-path models.
- Google Analytics: attribution models in GA4DocsFree Stage 6
The models left after the November 2023 removals.
- Gordon et al.: comparison of advertising measurement approachesResearchFree Stage 6
Observational attribution can be badly wrong.
- Anderl et al.: mapping the customer journeyResearchFree Stage 6
Markov graphs for channel attribution.
- Berman: beyond the last touchResearchFree Stage 6
The case for Shapley over last-touch.
- Refine Labs: the attribution mirageArticleFree Stage 6 Stage 10
Software versus self-reported attribution.
- Google MeridianRepoFree Stage 6
Open-source marketing mix modelling.
- DuckDB documentation: window functionsDocsFree Stage 6
The features the credit queries use.
Stage 7: AI sales enablement and coaching
- Gong API introductionDocsFree Stage 7
Authentication, limits and the endpoint list from the vendor.
- Gong: retrieve call transcriptsDocsFree Stage 7
Exact request and response shapes.
- Gong: retrieve detailed call dataDocsFree Stage 7
Parties, context and CRM fields.
- Fireflies API docsDocsFreemium Stage 7
A GraphQL API you can try on a free account.
- Google Meet REST API: artifactsDocsFree Stage 7
Transcripts and the 30-day limit.
- Murre and Dros (2015), Ebbinghaus replicationResearchFree Stage 7
The primary source, with the savings table.
- Roediger and Karpicke (2006), test-enhanced learningResearchFree Stage 7
Recall tests beat re-reading.
- pgvector READMERepoFree Stage 7
Vector search inside Postgres.
- Chroma getting startedDocsFree Stage 7
Collections, add and query.
Stage 8: Predictive Churn and Expansion (NRR)
- SaaS Capital: 2025 B2B SaaS retention benchmarksResearchFree Stage 8
Median NRR and GRR by contract size, and growth by NRR band.
- ChartMogul and Kyle Poyar: The AI churn waveResearchFree Stage 8 Stage 12
Retention for AI-native products by price band.
- Snowflake Form 10-K for fiscal 2026ResearchFree Stage 8
Primary source for Snowflake's 125% NRR and its method.
- Datadog Form 10-K for 2025ResearchFree Stage 8
How a public company defines dollar-based net retention.
- GitLab handbook: Customer health scoringDocsFree Stage 8
A real, published weighted health score.
- scikit-learn: Common pitfalls and recommended practicesDocsFree Stage 8
The official explanation of data leakage and the Pipeline fix.
- scikit-learn: Probability calibrationDocsFree Stage 8
Sigmoid versus isotonic calibration, and calibration curves.
- Google Machine Learning Crash Course: Accuracy, precision and recallCourseFree Stage 8
Plain definitions of precision, recall and accuracy.
- lifelines: Introduction to survival analysisDocsFree Stage 8
Explains censoring with a worked example.
- lifelines: Survival analysis with lifelinesDocsFree Stage 8
Covers KaplanMeierFitter and median survival time.
- Fader and Hardie: How to Project Customer RetentionResearchFree Stage 8
A classic 2006 paper on modeling subscription retention.
Stage 9: Integration-Led Growth
- Slack: Installing with OAuthDocsFree Stage 9
The authorize URL, token call and response fields for Slack apps.
- Slack: Using token rotationDocsFree Stage 9
12 hour tokens, one-time refresh tokens and the two-token limit.
- Slack Marketplace guidelines and requirementsDocsFree Stage 9
The full checklist for listing, scopes, security and support.
- Slack developer sandboxesDocsFree Stage 9
Free basic sandboxes for testing, with standard ones needing a paid plan or payment method.
- RFC 7636: Proof Key for Code ExchangeDocsFree Stage 9
The primary source for verifier and challenge rules.
- RFC 9700: OAuth 2.0 Security Best Current PracticeDocsFree Stage 9
Current guidance on PKCE, redirect URIs and refresh tokens.
- HubSpot: App Marketplace listing requirementsDocsFree Stage 9
Install minimums, review timeline and listing fields.
- HubSpot: OAuth quickstartDocsFree Stage 9
Authorize, token and refresh calls with real field names.
- Zapier: Public integration publishingDocsFree Stage 9
Review timeline, the Beta period and what to build while you wait.
- AWS Marketplace listing feesDocsFree Stage 9
The exact fee table for public, private and channel partner offers.
- Nango on GitHubRepoFree Stage 9
A source-available integration layer you can read, under the Elastic License 2.0.
- Crossbeam: win rate lift with partnersResearchFree Stage 9
Vendor data by ecosystem size, useful for judging the claim.
Stage 10: Dark social and community
- The Atlantic: Dark Social, We Have the Whole History of the Web WrongArticleFree Stage 10
The 2012 piece that named the idea. My fetch was blocked, so check the figures yourself.
- SparkToro: Dark social falsely attributes traffic as directResearchFree Stage 10
Which networks lose their referrer.
- Recast: HDYHAU surveys and their limitsArticleFree Stage 10
Recall bias and what surveys miss.
- 6sense 2025 B2B Buyer Experience ReportResearchFree Stage 10
Day One shortlist data. Vendor-run.
- TrustRadius 2026 Buying Disconnect, summarized by HG InsightsResearchFree Stage 10
Peer and review usage in 2026.
- Orbit Model repositoryRepoFree Stage 10
MIT license, and the not-under-active-development note.
- Postman: Postman has acquired OrbitArticleFree Stage 10
Primary source for the Orbit product sunset.
- Mary Thengvall: Don't Create; Re-use! (DRQL talk)ArticleFree Stage 10
December 2019 DevRelCon London slides with five DRQL examples.
- Discord developer docs: Guild resourceDocsFree Stage 10
Invites, members and counts endpoints.
- Slack changelog: rate limits for non-Marketplace appsDocsFree Stage 10
Read before you plan a Slack bot.
Stage 11: The automated QBR
- Gainsight: How to run an executive business reviewArticleFree Stage 11
Agenda with timings, plus cadence by account type.
- Gainsight: The dos and don'ts of executive business reviewsArticleFree Stage 11
Blunt on status updates and data dumps.
- Gainsight: The essential guide to QBRsArticleFree Stage 11
QBR agenda and metrics. Verify its cited statistics before reuse.
- Bain: Customer success at a crossroadsResearchFree Stage 11
The 2025 survey on automatable CSM time.
- US BLS: Employer costs for employee compensationResearchFree Stage 11
Primary source for loaded hourly cost.
- Forrester: Total Economic Impact methodologyDocsFree Stage 11
The four parts of the TEI model.
- python-pptx: Working with chartsDocsFree Stage 11
Exact code for chart data, chart types and
add_chart. - Google Slides API: Merge data into a templateDocsFree Stage 11
The copy-then-replace pattern, with Python code.
- Google Slides API: batchUpdate referenceDocsFree Stage 11
Endpoint, scopes and all-or-nothing updates.
- Claude docs: Reduce hallucinationsDocsFree Stage 11
Techniques behind a guarded summary.
- Gamma developer docsDocsPaid Stage 11
Generate, template and polling endpoints. Keys need a paid plan.
- Tufte: The Visual Display of Quantitative InformationBookPaid Stage 11
The classic on graphical integrity.
- Wiley: Storytelling with DataBookPaid Stage 11
Six lessons for business charts.
Stage 12: Public GTM Teardowns and Portfolio
- Wayback CDX server documentationDocsFree Stage 12
Parameters for listing, collapsing by month and filtering captures.
- Wayback availability APIDocsFree Stage 12
Check whether a URL is archived and find the capture closest to a date. The page also has a Save Page Now form.
- Greenhouse Job Board APIDocsFree Stage 12
Public job data with no authentication.
- Ashby public job posting APIDocsFree Stage 12
The endpoint and pay fields used in the job script.
- Playwright for Python: screenshotsDocsFree Stage 12
Full-page screenshots, the core of dated evidence.
- ChartMogul: The SaaS Plan Mix ReportResearchFree Stage 12
A pricing-structure benchmark with its own correlation caveat.
- Kyle Poyar's Growth UnhingedArticleFreemium Stage 12
A weekly newsletter on pricing and growth. Its author wrote the ChartMogul AI churn report above.
- Frederick, Lee and Baskin: The Limits of AttractionResearchPaid Stage 12
Why the decoy effect may not survive realistic stimuli. Abstract is free.
- Yang and Lynn: More Evidence Challenging the Attraction EffectResearchPaid Stage 12
The 91-attempt replication, with 11 reliable effects.
- Simonson and Tversky: Choice in ContextResearchPaid Stage 12
The source of extremeness aversion, behind good-better-best ladders.
- Anderson and Simester: Effects of $9 price endings on retail salesResearchFree Stage 12
Three field experiments on charm pricing (abstract).
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