Xeni on CNN Showbiz Tonight Friday: citizen journalism and 7/7

Friday's edition of the CNN Headline News program "Showbiz Tonight" will include a second look at internet "citizen journalism" coverage of the London bombings, and the increasingly thin boundary between eyewitnesses armed with phonecams and pro journalists in the field with video crews. I'll be among the live studio guests. Airs at 7pm/11pm ET.