Yet another nifty geeky site. Hack-a-Day has a link to how to make your own lava lamp :)
geek review: October 2004 Archives
I guess I'm a google-phile and this would be a fun site for those of you interested in using google beyond the www.google.com interface
Another neat site is YouSendIt which basically allows you to upload files and send the link to your friend where she can then click the link and download the file. Beats wondering about email size limitations and bouncing.
And the color wheel everyone has seen once but forgot to bookmark and is now cursing themselves.