What my quick Google search found (leaving out the notices on Alyssa's blog, the CPL website, and Wikipedia).
Arend.
1) Editor's Pick at Boston.com
http://calendar.boston.com/cambridge_ma/events/show/293426605-wikipedia-loves-libraries
and in the print edition of the Globe as well (yesterday)
http://bostonglobe.com/arts/2012/11/14/boston-area-events/SSYmTPb05ohemIvgmile6H/story.html
2) Cambridge City website
http://www.ci.cambridge.ma.us/citynewsandpublications/news/2012/11/wikipedialoveslibrariescomestocambridgesaturdaynov17.aspx
3) Massachusetts Study Network
http://mastudies.ning.com/forum/topics/wikipedia-loves-libraries-at-the-cambridge-public-library
4) Harvard Blog (see entry on 9/10/2012)
https://blogs.law.harvard.edu/jkbaumga/