Red vs Blue Season 7 review: from IGN. Someone who had never watched it reviewed the series, notes the light-hearted tone of the season. Also reviews the audio and video quality of the DVD.
Red vs. Blue Season 8 review: from IGN. Notes that season 8 is the first season to use pre-rendered character animation instead of tradition machinima in-game stuff.
A Wired profile of the company that made Red vs. Blue. Goes into the history with the developers of how it was created and the success it currently has.