http://www.stockvault.net/tutorials/photoshop_burning_flesh_effect.php Photoshop tips to make skin look like it is burning.
http://www.damninteresting.com/this-place-is-not-a-place-of-honor An article about the problem of marking Yucca Mountain.
http://www.google.com/search?q=sqrt(-1)
http://gwigle.varten.net/ Very fun but hard game to teach you about Google's web search.