Odeo is an audio/video site similiar to UTube.  The posts on the site are divided into categories that allow the user to search according to areas such as leisure, sports, education, people, etc.    The areas are very general so although they may be fun for casual browsing they did not seem to be very helpful. 

The site also has a general search function so you can search for a specific topic you are looking for.  I did searches for a wide variety of topics from all different kinds of "areas" and found results for nearly all of them.  The ones that did not return results were highly technical topics such as "wound debridement". 

One of the most interesting things I noticed on this site is that many of the videos seemed to be from UTube.  UTube seems more user friendly, and there does not seem to be anything special about this site that would differentiate it from UTube.