Technology

tech·nol·o·gy [tek-nol-uh-jee] –noun: the branch of knowledge that deals with the creation and use of technical means and their interrelation with life, society, and the environment.

Share Presentations, Photos, Videos & More

SlideShare : share Powerpoint presentations and slideshows
Flickr : share photos
Ma.gnolia : share bookmarks
YouTube : share videos
Swivel : share data (currently in beta)

Create Instant Websites

PBWiki :Create simple websites that can be collaboratively edited
Ning : Create your own social network
Webnode or Weebly : Create a nice-looking website. Easy & free.

Share your thoughts

Blogger : Publish regular updates about your work and life, get feedback, and build a following, with Google's free blogging tool

Tumblr : Share brief thoughts, quotes, photos, and other tidbits of interest

Twitter : Post super-quick, frequent updates from your phone, IM client, or the web

Extend Conversations

Meebo Rooms : Create embeddable chat rooms
Ustream : Stream live video and chat about it