Richard MacManus from ReadWriteWeb recently wrote about his experiences with Health 2.0 tools as a Type 1 Diabetic.  His article, Health 2.0 Through the Eyes of a Diabetic - One Year Later, provides a very good review of some of the web tools available for patients and I highly recommend reading through his article and checking out some of these web apps for yourself.

Some of the tools I found to be most interesting are the iphone apps that allow patients to monitor their blood sugar levels and weight.  Apps for these 3G devices have the potential to greatly empower patients in the tracking and management of their condition.    

It is interesting to note that Richard says he doesn't actually use the web to manage his diabetes as much as he could due to a large part to the fact that many of these tools are not available to people outside of the US.  As a Canadian, I have to agree that other countries are lagging far behind the US in Health 2.0 and eHealth in general.