I just sent, via Paypal, a $25 contribution to keep the Clear Sky Clock
going. I'd like to encourage others to do the same (although in the long
run, sponsorship by a business or funding by NASA or NSF would probably be
the best plan).

You can do that at:
http://66.78.6.237/~cleardar/csk/sponsors.html

If you're not a Paypal subscriber, you can use any major credit card.

--
Clear skies,

Michael Covington -- www.covingtoninnovations.com
Author, Astrophotography for the Amateur
and (new) How to Use a Computerized Telescope