Known as the "air traffic control center" by Twitter execs, Tweetdeck is by far one of the most popular of all the Twitter applications currently available. This fast-paced application enables the user to "stay in touch with what's happening now" by collecting contacts from programs such as Twitter and Facebook in one place, all at once. Users can customize Tweetdeck with groups and columns to organize followers, or set up automatic updates to find out what others are saying about you.

"Tweetdeck is the ultimate time management tool," explains Christi Day, emerging media specialist at Southwest Airlines. "I'm constantly using Tweetdeck to monitor words such as SWA and Southwest. Plus, I use it to find out what our competitors are up to. I also love having the ability to retweet and add photos quite instantly."

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