TWITPIC :

You can share photos on Twitter by posting them to TWITPIC and then sending out a Tweet to your followers. Try it now. Click HERE.

FLICKR :

Video and photo site that you can use to post to Twitter. Click HERE.

TWITALYZER :

Social Media’s most popular and widely used application for analytics. It is used by over 400,000 people so far. Try it HERE.