DNA Computing

http://en.wikipedia.org/wiki/DNA_computing, http://www.rsa.com/rsalabs/node.asp?id=2355,
http://www.britannica.com/EBchecked/topic/941575/DNA-computing

http://www.howstuffworks.com/dna-computer.htm

http://www.economist.com/node/21548488

http://www.newscientist.com/article/dn23337-dna-transistors-pave-way-for-living-computers.html

http://news.nationalgeographic.com/news/2003/02/0224_030224_DNAcomputer.html

http://www.ai.mit.edu/projects/living-machines