Less fancifully, the Human Microbiome Project is in the stage the human genome project was a decade ago, when all that was really available was a single reference genome built from the DNA of anonymous volunteers.

FORBES: Government Unveils First Map Of All The Germs In The Human Body

Not all deviations from the genome project's reference sequences are harmful mutations.

ECONOMIST: Cancer genetics

The entire fruit fly genome is already available on digital disk for reference.

BBC: Zebrafish genome next