HubSpot Academy
AEO Fundamentals
HubSpot's free certification on answer engine optimisation: staying visible in search and AI-generated answers.
Free certificateBusiness & Marketing
2.3 hrsBeginner
173 free courses
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Google's free Skillshop certification for building and optimising Google Search campaigns, including AI-powered features.
Free certificateBusiness & MarketingSelf-pacedBeginnerHarvard's AI course: search, knowledge, uncertainty, optimization, learning and language.
Free certificateAI & Machine Learning70 hrsIntermediateCoursera
Writing in the Sciences
Kristin Sainani's Stanford course on clear, effective scientific and professional writing.
Paid certificateWriting & Humanities23 hrsBeginnerMIT OpenCourseWare
6.034 Artificial Intelligence
Patrick Winston's classic MIT AI lectures on search, constraints, learning and inference.
No certificateAI & Machine Learning40 hrsIntermediate