Social Software in Libraries

I listened to the Social Software in Libraries podcast from Library Gang 2.0 last week. What I found helpful was the point made that all social software options are not helpful for all libraries. Finding the social media device that fits the needs of a library is something that each individual library needs to make for itself.

We have a particularly technology enthusiastic librarian in our system who insists on using every social media option available. Sometimes I feel that if she focused on which items were actually working, and focusing her time on those, she would find more success.

I tried the blog to promote programs in the library, and found it difficult to keep up with, and tough to get the non-blogger to check out for upcoming information. I did find however, that creating a fan page on facebook has created a great way to communicate upcoming events to potential attendees, and as more people "fan" the program information is reaching more and more individuals.

My blog was not completely left to fade off into oblivion. I found that it was incredibly useful as a tool to stay in contact with the 18 member libraries that I help plan programming for.
Often, my e-mails are lost in the day to day hubbub because library directors don't have programming on their daily radar. But if I post information on a blog, and they subscribe to it, or have it bookmarked, they reach out to it once a week, once a month, or however often they focus on programming.

The response from the directors has increased significantly by implementing this social software.

What social software experiments have you tried? Find anything unique that worked?
Has anyone actually succeeded with Twitter? I just can't get into it!