Anthony Cicadao for the moon phase image.
The quill pen image 
on the main page was taken from "How Things Work" by Complete Computer Solutions Incorporated. I hope they don't mind a little free publicity in return for using their image. The rest of the "How Things Work" page looks interesting, too. I'll have to go back there some time.
Gave me the javascript for the nifty "Show Source" button.
provided the random rotating quotes thingie on the main page at no charge. They have many other spiffy goodies, too.