Late is better than never. I bookmarked this to blog about 3 weeks ago and then promptly forgot about it. This is a nice collection of potentially useful Web 2.0 sites. One or two of them might even change the way you use the internet.
A short list of sites that I use (from this list) on a daily basis: Last.Fm, Pandora, Meebo, Flickr, Digg, Gmail, and somehow I am just noticing that they forget to include Netvibes.
Wandering the Interwebs 