he essence of Twitter is conversation. Libraries, however, tend to use it as a broadcast mechanism. Libraries on Twitter should encourage followers to interact with the library—ask questions, share links, re-Tweet interesting posts from others, and reply when people message you (those are prefaced with @ your account name). For professional development, look for conference coverage on Twitter. Given the many potential uses of Twitter for libraries—not to mention the likelihood that your patrons are already on it—it’s a great medium to embrace. And at just a few sentences a day, the lightweight format doesn’t require much time to make a big impact. The accounts above will give you a feel for library Twittering (for more libraries that Twitter, check out www.libsuccess.org/index.php?title=Twitter).