Wikis began as free, open, public spaces for anyone at all to contribute and share their knowledge, expertise, and wisdom. Businesses have begun to recognize, however, the power of the wiki model for accomplishing internal collaborative tasks, like revising HR documents, producing specifications, and communicating across time and space. Call it Wiki 2.0 — and it’s the newest thing in enterprise software. “The wiki is a tool that groups can use as an extension of their workspace,” wiki expert Stewart Mader.