Examples of Digital Collage - Self Portraits

Here are some links to examples of digital collage, or montages that are self portraits:

http://images.etsy.com/all_images/c/c36/1a4/il_fullxfull.8823955.jpg

http://graphics.ink19.com/columns/transparancy/self.jpeg

http://mfnd.org/agony.jpg

I also found a great series of essays on modern art:
http://www.arthistory.sbc.edu/artartists/modernism.html