Josh Wolf is an independent journalist and blogger. He was held in contempt of court and jailed on August 1st for refusing to testify and turn over unpublished material to a Federal Grand Jury investigating a July, 2005, anti-G8 demonstration. SF Weekly has a pretty balanced article about his case here.
His friends and family have created a wiki page here to update the public on Josh's case. Please donate to Josh's legal fund. All funds raised will go to legal costs, his prison commissary fund and other basic necessities.
You can get more information here: http://joshwolf.net/grandjury/