Been following the issue regarding this law for a while now. The relevant twitter hashtag seems to be #NoLeggeBavaglio (Italian for '[Say] No to the gag law") for those that wish to find out more.
This is but one blog (in Italian) on this topic and the campaign to try and keep paragraph 29 from sticking around: http://www.valigiablu.it/doc/540/comma-ammazza-blog-un-post-...