Tools for using Twitter
Twitter
Twitter
Introduction to Twitter and Microblogging
Twitter Guide: The Best Twitter Apps and Tools
How to Build a Twitter Following and Why You Should
NPR: Tweeting poetry
iOS Twitter apps
Twitter app
TweetCaster
Tweetbot
Tweetdeck
Twitteriffic
HootSuite
Android Twitter apps
Twitter app
HootSuite
TweetCaster
Plume
Tweedle
Echohon
UbenSocial
Carbon
Seesmic