How do I contact Bill Cosby, Russell Simmons, Sean Puffy Combs and Cornell West I need a way to email them some info about my nonprofit organization.

First its not a good idea to piggyback your question on someone else's. This can lead to confusion. You should start a new thread. So I've moved your question to its own thread.

Entertainers on that level have layers of people in front of them to field such inquiries. Most such entertainers have web sites where you can find a contact address.

Anyone who would have a contact point that gets directly to such people are generally trusted people who won't reveal the contact info.

Ummm... good luck with that one... I think the only way you can get through to them is to send your information to their fan sites... unless you know someone who actually knows them, you won't get through any other way. At least, I highly doubt it. Good luck with your non profit organization!