Facebook

I have sent friend requests to few colleagues and has been excepted as a Facebook friend by some of them - that is so cool!
Also, I have looked at the Hennepin County Library Facebook profile and I think it is a wonderfull idea to do that but even more - it is so great because they really thought through what they doing it for. It is highly interactive: you can message librarian in real time and he/she will message you back - it's so awesome; you can go and search library catalog straight away and even more you can add it to your Facebook profile!