Science is already a wiki if you look at it a certain way. It’s just a highly inefficient one — the incremental edits are made in papers instead of wikispace, and significant effort is expended to recapitulate existing knowledge in a paper in order to support the one to three new assertions made in any one paper. — John Wilbanks. Illustration: papers and wikispace.
The 10 most recent changes to the English Wikipedia
Note the "hist" links leading to the version history of the respective pages.