{"slug": "stacy-s-brain", "title": "Stacy's Brain", "summary": "Stacy's Brain has launched a marketing-insight database of 883 cards, each assigned a reliability tier, to distinguish vendor surveys, case studies and academic papers that are often quoted with equal confidence. The service connects to Claude so that marketing benchmarks returned by the assistant carry the reliability tier, the underlying study and its limitations, and it cites an Ahrefs finding that only 12% of links cited by AI assistants appear in Google's top 10 results for the same prompt. The product is free to browse, save and share, with search by metric or channel, bookmarks, personal notes and optional public folders.", "body_md": "[Only 12% of links cited by AI assistants show up in Google's top 10 search results for the same prompt](https://stacysbrain.com/cards/ahrefs-ai-cited-links-reach)\n\n# Marketing's collective memory\n\nchecked and graded so you can build on evidence\n\n- [CollectionIncreasing creator marketing efficiency in 2027](https://stacysbrain.com/collections/increasing-creator-marketing-efficiency-in-2027)\n- [CollectionHow to earn AI search citations](https://stacysbrain.com/collections/how-to-earn-ai-search-citations)\n- CollectionWhat are the key marketing trends for 2027?Coming soon\n- CollectionWhat are the latest benchmarks for media-buying channels?Coming soon\n- CollectionHow to optimize for AI searchComing soon\n- CollectionHow to work with creators in 2026?Coming soon\n\n- Citation & visibility trackingTrend\n- Email contentIdea[Hyper-personalised content lifted site conversion to 2.9% from 0.5% and email click-through to 3.4% from 1.8%](https://stacysbrain.com/cards/deloitte-hyper-personalization-lifted-conversion)\n- Shortlisting creatorsIdea[Better audience-brand fit nearly doubled the odds of conversion](https://stacysbrain.com/cards/jmsr-audience-brand-fit-nearly)\n\nCards — All tiers\n\n883\n\n## Each card \n\nhas a reliability tier\n\n## Because **not every** insight \n\nis worth an action\n\nStacy's Brain exists because a vendor survey and a peer-reviewed experiment get quoted with the same confidence — and they shouldn't be. Vendor reports, case studies, and academic papers all use different methods and samples; we grade the difference so you don't have to guess it.\n\n[Browse our evidence-based collections](https://stacysbrain.com/collections)\n\n## Trending insight \n\ncollections\n\n## Rated marketing evidence, inside Claude\n\nAsk any assistant for a marketing benchmark \n\nand you'll get a number.\n\nYou won't get the part that matters: that it came from a company selling the thing the number promotes, that the sample was their own clients, and that it's two years old.\n\nConnect Stacy's Brain and every marketing number Claude gives you comes back with a reliability tier, the study behind it, and what that study doesn't cover.\n\n## Turn our stats into \n\na plan you can defend\n\nBrowse, save, share – for free\n\n- Search by metric, channel, or the question you're trying to answer\n- Bookmark and create insight collections\n- Add personal notes to each insight\n- And if you need – make your folders public", "url": "https://wpnews.pro/news/stacy-s-brain", "canonical_source": "https://stacysbrain.com", "published_at": "2026-11-02 18:37:08+00:00", "updated_at": "2026-11-02 18:51:57.664044+00:00", "lang": "en", "topics": ["ai-search", "generative-engine-optimization"], "entities": ["Stacy's Brain", "Claude", "Ahrefs", "Google", "Deloitte"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/stacy-s-brain", "markdown": "https://wpnews.pro/news/stacy-s-brain.md", "text": "https://wpnews.pro/news/stacy-s-brain.txt", "jsonld": "https://wpnews.pro/news/stacy-s-brain.jsonld"}}