Here are some free Web 2.0 Tools:
Social book marking on line. Presenter's web 2.0 book marks: http://del.icio.us/mia_sarx/web2.0
Box.net is a web-based service that lets you store files online, share with other people, and collaborate on projects. It is a digital drop box.
Quizlet is a free online application that lets you create, learn and share flashcards on any subject. It will even create tests of a style and size you specify.
This replaces visual thesaurus. Look up words in the Visuwords online graphical dictionary and thesaurus to find their meanings and associations with other words and concepts.
Zamzar supports conversion between a wide variety of different file formats, i.e., convert files from word perfect to word, save & convert YouTube videos.
Mango is designed to equip you with conversational abilities from the very start. Whether you're learning how to order a pizza or ask when the game starts, Mango immerses you in real, everyday conversations in 12 different language courses. This site also has an ESL section.
Online photo editor; automatically recognizes files from flickr and picassa. Picnik makes your photos fabulous with easy to use yet powerful editing tools. Tweak to your heart’s content, then get creative with oodles of effects, fonts, shapes, and frames.
This is a powerful image editor that integrates really well with online photo archives at flickr and picasa. The tool also connects your images to social networking sites. If you haven't edited photos before, this is a great place to start. Online editing to online hosting.
Animoto videos--music videos for your images and pictures. With high production value motion graphics synchronized to every beat of your music, ...
Gliffy.com is a free web-based diagram editor. Create and share flowcharts, network diagrams, floorplans, user interface designs and other drawings online. Free inspiration, mind mapping.
Scratch is a new programming language that makes it easy to create your own interactive stories, animations, games, music, and art -- and share your creations on the web.
The Visible Body
Argosy's Visible Body is the most comprehensive human anatomy visualization tool available today. This entirely Web-delivered application offers an unparalleled understanding of human anatomy. The Visible Body includes 3D models of over 1,700 anatomical structures, including all major organs and systems of the human body.
The site is simple: it is like a currency converter, but for completely unrelated items. Play around, and suggest other stuff you want to see - we will make it happen.