Great point - Twitter for advocacy

The NY Times has an article in today's edition, Twitter on the Barricades: Six Lessons Learned,  that included an idea that could easily transfer to advocacy efforts your library may be conducting. 

Twitter Can Be a Potent Tool for Media Criticism

Just as Twitter can rally protesters against governments, its broadcast ability can rally them quickly and efficiently against news outlets. One such spontaneous protest was given the tag #CNNfail, using Internet slang to call out CNN last weekend for failing to have comprehensive coverage of the Iranian protests. This was quickly converted to an e-mail writing campaign. CNN was forced to defend its coverage in print and online.