Welcome to the world of microblogging --Planning for Twitter in your business --Joining Twitter and getting started --Building your best tweet --Sending messages --Searching and following --Keeping the tweet on key --Hashing out hashtags --Networking with Twitter --Keeping tabs on the Twitterverse --Twenty-five business uses for Twitter --Applying elements of viral marketing --A closer look at the need for engagement --Gaining advantage from Twitter advertising --Ten microblogging mistakes to avoid --Other microblogging boosters --Zappos.com (www.twitter.com/zappos) --Berry chill yogurt couture (http://twitter.com/yogijones) --Naked pizza (http://twitter.com/nakedpizza) --Comcast (http://twitter.com/comcastcares) --American Red Cross (http://twitter.com/redcross) --Blue cotton t-shirts (http://twitter.com/bluecottontweet) --Geni (http://twitter.com/geni) --Ty's toy box (http://twitter.com/tystoybox)