Tendonitis is the inflammation of a tendon. It is usually referred to by the part of the body which is involved, for example, Achilles tendonitis for inflammation involving the Achilles tendon, or patellar tendonitis for inflammation of the patellar tendon.
Regular Blogs
Achilles Tendon Injury Recovery Blog
Community weblog was designed to bring together people in recovery from primarily Achilles tendon injuries, as well as other forms of tendon injury. Here they share their experiences with the injury as well as recovery.
http://achillesblog.com/
My Experience with Achilles Tendon Surgery
Contains a graphic account of the blogger's achilles tendon surgery as well as photographs which are just as graphic.
http://achillessurgery.blogspot.com/
The author of a book by the same name writes this blog, which discusses inexpensive, effective relief from tendon pain as well as tests to evaluate tendon pain.
http://targettendonitis.com/