Thing 24 Twitter

I Twitter could be useful for distributing new title lists to patrons. I know that was discussed in the School Library Journal article, but I thought it would be a good idea before I read that other libraries are doing it. I currently am responsible for posting the new title lists for adult books, children's books, adult DVDs, children's DVDs, music, and audiobooks. All titles link back to the catalog, and a patron can then place a hold on the item. However, I often wonder if anyone bothers to read them and places a hold on the catalog through the list. If patrons could get the feed from Twitter, I think people would utilize this service. I also think it would be a good way to for library staff to communicate with one another in a quick manner. Even though I am from a medium sized library, we have many different departments, and it is hard to keep up with what is going on in each department. This would be an efficient way to communicate internally. I wonder, though, when is it more appropriate to use a regular blog, as opposed to twitter or a microblog?