Using spiderous to discover cool sites
Once I started using del.icio.us for managing my bookmarks, I came across this site called spiderous which aggregates popular and new bookmarks from sites like del.icio.us , spurl, furl and a couple of others.
I make it a point to check out the popular links on a daily basis, you can find some really good stuff.
For example, today I found these great links
A Programmers guide to the mind - An excellent article on how the mind works and how to best utilize it.
The Selfish Class - A theory on how to promote code reuse using the principles of evolution.
Also for those interested in cognitive science, here is a great site http://www.cognitivedaily.com/