JavE das Photoshop für Ascii-Art
http://www.jave.de/   

THE library
http://aa-project.sourceforge.net/aalib/

http://www.heinerkuecker.de/AsciiTable.html

Demos

http://www.sixteencolors.net

some Art:
http://www.asciiartfarts.com
http://vyznev.net/ascii
http://www.chris.com/ascii
http://userpages.umbc.edu/~dschmi1/cows/ascii.html
http://www.asciipr0n.com/

starWars
http://www.asciimation.co.nz/
telnet://towel.blinkenlights.nl