Old Weather: Whaling
A subset of one of my favourite sites on the web:
Explore the Arctic of the past from the deck of a whaling ship.
Choose your vessel and get transcribing.
Old Weather - Our Weather's Past, the Climate's Future
What a superb project! Forget Mechanical Turk — this is the way to harness the collective intelligence of humans: transcribing weather observations made by naval ships at the beginning of the twentieth century. It's all grist for the climate model mill.