- del.icio.us
- very useful because of accessing your bookmarks from everywhere
- tags for every bookmark are helpful to find and organize them
- see someone's bookmarks (if you know his nick) by entering http://del.icio.us/nickname
- Wikipedia about del.icious
- del.ico.us-extension for Firefox
- extispicious gives you a textual scattering of a user's tags, sized according to the number of times that they've used each of them
- del.irio.us
- similar to del.icio.us, but open source
- content is licensed under a Creative Commons license
- flickr
- you can upload photos and pics and tag it
- recently purchased by yahoo
- commons.wikimedia
- upload pictures and choose your own license (go public domain or "dual-license")
put your clips online
music
networking
not really web services, more remains of the community hype