People will gather in Rome Piazza Navona..in protest of a proposed bill on the Italian books which will limit the freedom of speech as it pertains to online voices within the Italian Internet...bloggers, twitterers (is that a word?), social network posters, etc. Thousands are expected to fill the piazza against this proposal wearing gags around their mouths.
You can read more here at The Olive Notes and here Roam 2 Rome
The bloggers I know writing about this are :-