(via Beth Kanter) I found this guide to using Facebook for Activism, from DigiActive:

Given the incredible numbers of people logging on every day, it makes sense to try to use facebook for activism - but, as the authors point out, you have to be careful about your expectations.
I like this description, of one of the [...]

(via ars technica)
Good news:
Internet radio will remain safe and sound, at least through July of this year, on account of a new decision by the US Copyright Royalty Board.
This means more time to call your representative and urge them to back HR 2060, the Internet Radio Equality Act.