Voluntary Blood Donation

I read an article in todays Bangalore Mirror regarding shortage of blood supply in hospitals.
At the same time there was a call for help from Corporates for Blood donation camps in campuses
Unfortunately my plans of organising Voluntary Blood Donation camp in my companys campus couldln't get a nod from management
for not so obviuos reasons as this program was cancelled twice last year.
Anyways, I have decided to canvass among my colleagus and make it p in any of the VBDCamps.
Looking out for such camps..
Once I had tried to donate blood in a camp in my BE college but was not selected because of low bp
Seriously this time, dont wanna miss...
Pals, lemme know if u hve any info on such....

Questions related to Voluntary Blood Donation,
 - pros and cons on ones health
 - safety measures [fear of some defacto diseases]
 ...add. on