It seems like there is a never-ending flow of sites about digital media, and it times it can present an overwhelming challenge to decide which ones might be most useful. MediaShift is certainly one of the best, and it is led by Mark Glaser, noted journalist, critic, and media expert. With support from PBS, this site and weblog looks at how new media such as podcasts and citizen journalism are changing society and culture. On the site, visitors can start by looking through "The Week's Top 5", which offers a short list of things that have been particularly prominent around the web. Visitors looking for specific topics can look through a topical list that includes "Legal Drama", "Online Video", "Satellite Radio", and several dozen other topics. Finally, visitors can also sign up to receive a RSS feed and also elect to receive updates via email.