220 You Have a Book in You Explore Facebook Marketing Facebook Marketing Solutions is a really brilliant (and free!) group on Facebook that teaches you how to mar- ket yourself and your work. 吀栀e group uses examples in the major media, large and small, to give you ideas. 吀栀ey might show you a great idea that Pepsi Cola used recently, or take you to a website where a shoe company made a pro昀椀t with a clever hook. Spend 昀椀ve minutes a day on this site, become a fan, and you will always have some new ideas on how to get yourself out there. Twitter Twitter is a free social networking and microblogging ser- vice that enables users to send and read updates (called “tweets”). Tweets are text- based posts of up to 140 char- acters in length, which are displayed on the user’s pro昀椀le page and delivered to other users who have subscribed to them (called “followers”). Senders can restrict delivery to those in their circle of friends or can, by default, allow any- body to access them. Users can send and receive tweets via the Twitter website, Short Message Service (SMS), or applications such as Tweetie, Twitterri昀椀c, Twitterfon, TweetDeck. 吀栀e service is free to use over the Internet, but using SMS may incur phone service provider fees. At this point, there are some 330 million active monthly users of Twitter. It is of unique value to market-