We’ve mentioned the March demonstrations in Spain htat were coordinated with SMS, chats, and blogs. Alvaro Aldura points to the 13m site, saying in his email that it “…is a web site dedicated to [the March demonstrations], and in general to any social demonstrations, boycotts, and protests, specially those that were spontaneous (for example, Barcelonas tramways strike in 1951, the first against Franco¬¨‚Ä¢s dictatorship). There are links to other pages with lots of info about 3-13 (13m in spanish), with videos, audio files, etc.”