Ultimate Pen

Draw on top of any software application - great for making screencasts of training videos.

Ultimate Pen

Interactive Online Whiteboard

Pretty smooth web 2.0 board...check out the video and if you like, sign up...

DabbleBoard Video

Seashore

Macintosh port of GIMP type image editing program that doesn't require X11.

Seashore

Blabberize

Make a Blabberize at blabberize.com

uStream

Live and Broadcast TV coming your way - can anyone say "Convergence"...

uStreamTV

scribd

Scribd is a great online storage solution for pdf, doc, ppt, jpg, etc., type files. Upload them to your free account, which includes unlimited storage, the file is converted to flash and you can directly link to the file URL or embed in your web page/blog.

http://www.scribd.com

Got to be getting and using this tool, and RSS feeds in general - like the kids say, email is only used by adults.....;-)

Google Reader