Update your blogrolls and RSS feed readers, PBS’ MediaShift is now live. The blog is run by journalist Mark Glaser, who previously wrote a column for Online Journalism Review of the USC Annenberg School of Communication. He also writes the OPA Intelligence Report email newsletter for the Online Publishers Association.

MediaShift “is a weblog that will track how digital media technologies and techniques such as weblogs, RSS, podcasting, citizen journalism, wikis, news aggregators and video repositories are changing our world. It will tell stories of how the shifting media landscape is changing the way we get our news and information, while also providing a place for public participation and feedback.”