Participation in this Floodnet action was impressive: 138,321 hits over the three day period means that 138,321 individual computers were used in the course of the action, from 34 countries. According to a source Electronic Disturbance Theatre, the word got out to lots of underground hacker groups who prefer this sort of anonymous action to signing petitions and participating in marches.
This impressive show of support can be used by the mothers of murdered and disappeared girls as a means of applying pressure to the Mexican government. Also, it is very useful to have hacker support: In Argentina last year, hackers won a case in the Supreme Court that legally protects them if they access government records as public service. Many students at the UCLA conference were very interested in using the internet as an activist tool.