Couple of time I have used Google search to have a idea about whats going wrong with my body. 2/3 times I got the correct answer. 3rd one I could not find any result for my symtopms.
And now I saw thid crazzy thing Google have come up with separate area for it.
Hope this will be really helpful for people to have an idea before they go to the doctor.
Official Google Blog: Google Health, a first look
