Hi,
On the Health Pages we created we now have acronym lists in many of the communities and we're encouraging members to create their own lists for the communities without them.
A great example is in our Pregnancy Health Pages at:
http://www.medhelp.org/health_pages/Pregnancy/Common-Pregnancy-Related-Acronyms--Abbreviations/show/1?cid=98
Note that the lists created by our members here really go into detail and cover just about every abbreviation you'll encounter related to the subject you are reading about.
Someone told me about this website and it's really helpful. http://www.fertilityplus.org/faq/acronyms.html
Hope this helps!