Granted, I don't monitor Twitter for mention of many other libraries, but a couple of news stories about the video game collection that will be opening within the Taylor Family Digital Library here at the University of Calgary next year have resulted in more Twitter-love for the UofC than I've ever seen before. You can peek at the current search results, but here's a nice screenshot for you (click to embiggen).
The news articles referenced by the various tweets include U of C creates video game library space (CBC), Pac-Man gets new respect as U of C research tool (Calgary Herald), and Video game centre installed on campus (UofC Gauntlet). And a whole bunch of mostly gaming-related blogs have picked up links to those stories as well. Check the comments, especially on the CBC article, for the usual pro and con arguments about something new(ish) like this.
Geez that's a lot of white space left in here now. I'll leave it 'cause that long list of tweets creates such an awesome impression! ;-)