Social Bookmarking

I have to say a big thanks to our great teacher for giving us wonderful sites to read up on social bookmarking.  They all were very user friendly and really gave good insight into the whole idea and organization of social bookmarking.  I've only begun to explore this tool.  If you want to check out some of my bookmarks feel free to click on my link http://www.delicious.com/vanderwallk.  I can't wait to see some of your amazing bookmarks.  This really would've been a useful tool in my undergrad classes!