# Learn By Source

> Learn By Source is a course comparison and discovery platform. We index online courses from every major provider — Coursera, Udemy, edX, Pluralsight, LinkedIn Learning, DataCamp, freeCodeCamp, Khan Academy — and surface the best one for any topic with structured comparison data.

## What this site is

Learn By Source answers the question "which course is best for X" — not "what is X". Every page is a comparison or ranking page, not an explainer. Business model is affiliate revenue. The site earns a commission when users click through to a course provider.

## Key pages

- [Home](https://learnbysource.com/) — Discovery hub with trending courses, category browsing, and provider grid
- [Free Courses](https://learnbysource.com/free-courses) — All free online courses with certificates, filterable by topic
- [AI & ML Courses](https://learnbysource.com/category/ai-ml) — Best AI and machine learning courses ranked and compared
- [Data Science Courses](https://learnbysource.com/category/data-science) — Best data science courses compared by price, cert, and duration
- [Cloud Courses](https://learnbysource.com/category/cloud) — AWS, Azure, GCP certification courses compared
- [Programming Courses](https://learnbysource.com/category/programming) — Best programming courses for beginners and advanced learners
- [Business Courses](https://learnbysource.com/category/business) — Google, IBM career certificates and business skill courses
- [Cybersecurity Courses](https://learnbysource.com/category/cybersecurity) — Google and IBM cybersecurity certificates compared
- [Design Courses](https://learnbysource.com/category/design) — UX design and Figma courses ranked by rating and value
- [Marketing Courses](https://learnbysource.com/category/marketing) — Digital marketing and SEO courses compared
- [Finance Courses](https://learnbysource.com/category/finance) — Financial markets, accounting, investing and fintech courses compared
- [Leadership & Management Courses](https://learnbysource.com/category/leadership-management) — People management, leadership and team courses compared
- [Communication & Professional Skills](https://learnbysource.com/category/communication) — Public speaking, business writing and professional-skills courses compared

## Course data structure

Each course page includes: title, provider, instructor, rating (out of 5), enrolled count, duration in hours, level (Beginner/Intermediate/Advanced), price (Free or paid), certificate type (Professional/Verified/Completion), learning outcomes, syllabus, instructor bio, and a side-by-side comparison of alternatives.

## Providers indexed

Coursera (45% affiliate), Pluralsight (30-50%), LinkedIn Learning (35%), edX (10-13%), Udemy (7.5%), DataCamp, freeCodeCamp, Khan Academy

## Content rules

All content is transactional and comparison-focused. Learn By Source does not publish "what is X" explainer articles. Every page answers "which/best/compare".

## Contact

Site: https://learnbysource.com