50 Things to Tweet About

"Most of your tweets should be about helping others, but you also need to inject some personality, to put the “social” into social networking and help people get to know you. " -- Penny C. Sansevieri

http://www.bookbuzzr.com/blog/book-marketing/50-things-to-tweet-about/

"1. Teach stuff – teach a little mini-lesson on Twitter. Delve into your area of expertise or just talk about book publishing and how to get published.  ..."