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Stop hunting. Start learning with 1,664 hand-verified resources.
1,664 hand-verified resources across 55 skills. 1,497 of them completely free.
Newly added Skills for Humans
12 free resources and 3 paid resources
AI For Everyone (DeepLearning.AI via Coursera)
Andrew Ng's 6-hour non-technical overview of what AI can and cannot do, how to spot opportunities, and how to build an AI strategy. No coding required; ideal for founders, managers, and learners entering SC-08 AI Tools who want context before diving into prompting and tools. Audit-free, beginner-friendly.
Responsive Web Design Certification (freeCodeCamp)
300-hour interactive certification — HTML, CSS, flexbox, grid, and 5 required projects (tribute page, product landing page, etc.) — with an in-browser editor and instant feedback. Entirely free and practice-heavy, unlike video-only courses. Complements the catalog's theory courses with build-by-doing.
CS50's Introduction to Artificial Intelligence with Python (Harvard)
Harvard's 7-week CS50 AI teaches search, knowledge representation, neural networks, and NLP through Python projects (degrees, tic-tac-toe, traffic sign recognition). Free via Harvard/EdX, project-based with autograder. Ideal for learners who finished CS50 and want to bridge into AI without theory-only courses. Fills high-demand AI→ML pipeline.
Linear Algebra (MIT 18.06, Gilbert Strang — Spring 2010)
The definitive 34-lecture linear algebra course taught by Gilbert Strang — vector spaces, least squares, eigenvalues, SVD — with video lectures, problem sets, and exams with solutions. Essential foundation for ML, data science, and engineering. Fully free and self-paced. Directly fills SC-51 Math & Sciences gap (28 rows, needs 2 to reach 30).
English Grammar and Style (The University of Queensland via edX)
8-week UQx course that fixes the grammar, punctuation, and style errors that weaken academic and business writing, with short videos, quizzes, and peer-reviewed essays. Self-paced, 3-4 hrs/week. Fills SC-41 English Language gap (28 rows) for global learners who need polished written English for careers and study.
Career Success Specialization (University of California, Irvine via Coursera)
4-course series — career planning, personal branding, resume and cover letter, interviewing and negotiation — with hands-on projects and peer feedback. 4.6★, self-paced. Fills SC-40 Career Growth & Personal Branding gap (28 rows) with actionable job-market skills transferable worldwide.
Financial Accounting Fundamentals (University of Virginia via Coursera)
UVA Darden's 13-hour course — recording transactions, adjusting entries, and reading income statements, balance sheets, and cash flows — taught through real company examples. Top-rated (4.7★, 90k+ learners), audit-free. Directly addresses SC-35 Accounting & Bookkeeping, the thinnest category in the catalog (26 rows, gap 4).
Structure and Interpretation of Computer Programs (SICP)
The classic MIT computer science textbook is freely available online through MIT Press. SICP teaches foundational programming concepts — abstraction, recursion, higher-order procedures, interpreters, and meta-linguistic abstraction — using Scheme, with exercises embedded in every chapter. Studied for decades by students and self-learners for deep understanding of computation; companion video lectures by the authors are also available.
New Enterprises (MIT OCW 15.390)
Full free MIT Sloan course on launching new ventures, taught by Bill Aulet and Howard Anderson. Includes lecture notes, video tutorials on the 24-step startup process, assignments, and sample business plans. Covers idea validation, market segmentation, unit economics, and entrepreneurial finance. Openly licensed; no registration or fees.
Zeka Design
Free graphic design blog teaching logo design, brand identity creation, color psychology, and layout through detailed tutorials and theory articles. Each guide walks through the design process with visual examples, from researching a brand to delivering a complete identity system. Also covers design trends, typography, and portfolio-building advice for students and self-taught designers.
WordStream Blog
A free marketing education blog from WordStream, one of the best-known names in PPC and paid advertising. Articles teach Google Ads and Facebook Ads campaign building, keyword research, ad copywriting, landing page optimization, and budget management with real examples. The blog also hosts free downloadable guides and templates such as PPC checklists and keyword tools. Practical, data-backed lessons for advertisers of every experience level. All content free to read.
Time Management and Study (OpenLearn)
A free Open University (OpenLearn) resource on time management for students and busy adults, covering to-do lists, the Action Priority Matrix, weekly planning, procrastination and burnout. Includes links to the OU Time Planner and batch-cooking time savers. Free with no signup to read. Useful for learners juggling study, work and life who want a quick evidence-based reset on their time habits.
Spline Academy
Spline Academy is the official learning center for Spline, the collaborative 3D design tool used to build interactive scenes for the web and apps. It offers structured video courses and tutorials covering modeling, materials, physics, and interactivity, plus documentation for the editor. Beginners can follow project-based lessons while practicing directly in the free Spline editor, making it a practical route into interactive 3D design.
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HackerRank SQL Practice
HackerRank's SQL domain offers hundreds of coding challenges organized from Basic Select through Advanced Join, plus SQL Basic, Intermediate, and Advanced skill certifications. Each problem runs against a real database engine, so learners write and execute queries while building a ranked profile. It is a hands-on practice ground for job interview preparation and suits beginners through experienced analysts.
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AWS Skill Builder
AWS's official learning platform offering hundreds of free digital courses, skill builders, and labs covering cloud fundamentals, architecture, security, and exam readiness for AWS Certifications. Includes interactive scenarios and game-based learning for hands-on practice. The free tier grants broad access to core training, while a paid subscription unlocks additional exam prep and advanced labs. For cloud beginners and certification aspirants.
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