Online Whiteboard – skrbl.com
The complete web whiteboard. Start skrbl & give out your URL; instantly share online. Collaborate with others or, keep skrbl your own private web space. Type notes, sketch drawings, upload pictures, share files… Everyone sees the same screen, Everybody stays on the same page.
Or try Dabbleboard at http://www.dabbleboard.com/draw

Social Bookmarking – del.icio.us
del.icio.us is a social bookmarking website — the primary use of del.icio.us is to store your bookmarks online, which allows you to access the same bookmarks from any computer and add bookmarks from anywhere, too. On del.icio.us, you can use tags to organize and remember your bookmarks, which is a much more flexible system than folders.

Graphic Organizers – bubbl.us
Bubbl.us is a simple and free web application that lets you brainstorm online.

Cool Tool – The Awesome Highlighter
Show them what’s important – highlight! The Awesome Highlighter lets you highlight text on web pages and then gives you a link to the highlighted page.
Click here for a screencast on how to use this awesome tool.

Text To Speech – Voki
Voki is a site which allows you to create and personalize avatars with your own voice. You can make your “voki” look like you or choose different characters

Voice Notes in Microsoft Word – Wordtalk
WordTalk is a free plug-in developed for use with all versions of Microsoft Word (from Word 97 upwards), which can help people with reading difficulties use Microsoft Word more effectively.

File Converter – Zamzar
Copy and paste URLs or download videos and convert them to new file formats to save them on your portable drive. Also convert picture, music and other file formats as well.

Online Spell Checker- Ghotit!
Ghotit offers unique writing and reading online services for people who suffer from dyslexia, dysgraphia or people who are not native-English speakers. Ghotit’s first service is an online context sensitive spell checker.