This first link dicusses the benefits of Open Source Software in comparison to Closed Source Software in regards to licence issues and rights. You don't really own your copy of Windows or Microsoft office (if you use them). It also covers that risk of losing access to your files if a company changes file formats in a future release due to "closed standards".
Why Free Software Matters <http://www.osnews.com/story.php?news_id=6710&page=1>
The second link covers problems with the user interface for Linux. It does comparisons between Max OS-X and Windows XP. I didn't find XP to be that good of a front end (for the couple of times I have used it). It calls Linux desktops "klunky" in its comparisons. My 7 year old can work her way around the desktop with no problems. I of course prefer command line for many daily tasks. I have still used Lynx from time to time.
Fundamental issues with open source software development. <http://firstmonday.org/issues/issue9_4/levesque/index.html>
Enjoy
-- Robin Laing