There are numerous studies about how Twitter can be used in work and education. The study below integrated Twitter feeds into a corporate wiki. Some people found that Twitter had value where neither email nor IM seemed appropriate.
Zhao, X. et al (2011) "Integrating Twitter into Wiki to Support Informal Awareness." Proceedings of the ACM 2011 conference on Computer supported cooperative work. New York: ACM. pp733-736
Zhao, X. et al (2011) "Integrating Twitter into Wiki to Support Informal Awareness." Proceedings of the ACM 2011 conference on Computer supported cooperative work. New York: ACM. pp733-736
http://www.davidleeking.com/2007/03/10/twtter-explained-for-librarians-or-10-ways-to-use-twitter/
Twtter Explained for Librarians, or 10 ways to use Twitter | David Lee King
http://www.talis.com/panlibus/pdfs/Panlibus_13.pdf
The article is on p18-19. Patel, D. (2009) "Twitter a tool to manage enquiries in libraries". Panilus, (13), 18-19
http://twitter.com/scotlibraries
Twitter stream for Scottish Library & Information Council & CILIP Scotland
http://23things.wetpaint.com/page/Twitter+and+microblogging+%28Core%29
A post about the basics and value of Twitter on a "23 Things" blog
http://www.uvm.edu/~pdodds/files/papers/others/2011/thelwall2011a.pdf
Thelwall, M., Buckley, K., & Paltoglou, G. (2011). Sentiment in Twitter events. Journal of the American Society for Information Science & Technology, 62(2), 406-418.
http://www.asis.org/asist2010/proceedings/proceedings/ASIST_AM10/submissions/201_Final_Submission.pdf
Priem, J. and Costello, K. (2010). How and why scholars cite on Twitter. ASIST 2010, October 22–27, 2010, Pittsburgh, PA, USA