Since marketing is largely a collaborative process, both through partnerships with other organizations and other librarians, online tools and applications offer some exciting opportunities. For example,
Google Docs seems like a strong application for people who want the flexibility of accessing their data files from anywhere, much like
del.icio.us gives people access to their web links from anywhere. It is also a powerful tool for sharing documents, forgoing the need to email attachments in this virus-filled age. Of course, you do have this capacity through applications like google groups, which I have used on collaborative library projects when I worked with librarians in New Jersey and Cincinnati. I think
Google Docs is a strong tool to use, as long as participants can ensure that the material is secure, as you don't want your material searchable on the google search engine.
LibraryThing looks like a good place for librarians to organize their book collections and share thoughts on these books. I think it would have helped me as a cataloger when I was creating subject tracings for some of those hard to define novels, especially science fiction.
LastFM: looked like a promising place to bring together one of my loves, radio listening. When I checked out the web site, it looked liked it was geared primarily to the music side of radio, rather then the discussion side of radio. I prefer the discussion side of radio, as it tends to be more idiocyncratic and also more local, as most talk radio seems to be local (of course not all). I think the more local, unique, and informed our voice (both as librarians and as citizens, the better).
Twitter: looks like a strong social networking site, especially for the "on the move" set, who need to keep the gang up to date on where they are.
Twitter may save young people a lot of money, as they might not need to be texting a whole group of people where they are going (using all the texting costs), as they can just post something on Twitter and ask their contacts to check there. May be a short hand way of blogging, in a way.