This document provides a summary of the top 10 web-based educational technologies as of January 28, 2009. It discusses tools like widgets, wikis, social networking sites like Ning, slide sharing on SlideShare, website builders like Wix, virtual classrooms like WizIQ, open online courses, digital skills certification through Alison, virtual worlds like Second Life, and language learning communities like Wordle. All of the tools mentioned are free, web-based, allow for user interactivity and collaboration, and enable creating and sharing digital content.