Following on the open access and marine themes of the past few weeks, the Census of Marine Life is a terrific open access resource.
The census, carried out over ten years, was an impressively massive effort involving:
A DECADE OF DISCOVERY
2,700 scientists
80+ nations
540 expeditions
US$ 650 million
2,600+ scientific publications
6,000+ potential new species
28 million distribution records and counting
Much of the census research is freely available in different forms on the site, including research articles published in PLoS ONE. The site is a treasure trove that yields new and fascinating information with each visit.