Health - Online

Most of us use search engines for "academic" purposes very less use it find "health online"

There are all sites of sites out there ...

For people at office - http://www.ergocise.com/stretch.html

For fitness freaks - http://www.acefitness.org/

For pro-body builders - http://www.exrx.net/
specifically see the "Excercise and Muscle directory" http://www.exrx.net/Lists/Directory.html it has very good listing of excercises muscle wise with Gifs indication same and specifying what all muscles are major targets and which side target !!

For ideal height and weight
http://www.healthorchid.com/content/consumer/idealhtwt_c.asp
and http://www.medindia.net/patients/calculators/ideal_weight.asp

To know just the right food for you ... read this article
http://food.yahoo.com/blog/beautyeats/18848/eat-to-lose-before-and-after-workouts

cheerz !!