Tempera Paint

http://www.alessandrakelley.com/whyegg.html

Alrighty.

I've come across a guide to mixing your own paint that has far more detail than the site I posted on Tuesday. The page I've linked to lists some pros and cons of using egg tempera, as well as some basic facts, and has links to a nice multi-part guide to mixing and using tempera paint towards the bottom, as well. They even provide a page full of common techniques employed with this medium.

Definitely keeps one occupied for awhile, to say the least. That my previous source of information on this was suddenly taken offline may have actually been serendipitous, given how much better this source is.

http://www.geocities.com/CollegePark/Library/2036/tempera.html

This nice little site provides a far more basic look at tempera paint and pigments, so it's nice for getting the gist of what tempera paint really is (as opposed to poster paint from the craft store that likes to call itself tempera.)

Er, enjoy!