definitions help please: corporations, community chests, funds, and foundations?

Factual Questions
1

Whats the difference between:
A corporation
A community chest
A fund
A foundation,…

This is from IRS code 501© regarding non-profits.

2

Boo-ya:

http://www.muridae.com/nporegulation/documents/exempt_orgs.html

More than you ever wanted to know.

3

Check Nolo Press (www.nolo.com) for some very nice plain English definitions and discussion about these things.