An option that bridges the open world of wiki's and peer reviewed academic journals is Scholarpedia, a free peer reviewed encyclopedia written by scholars from all around the world.
"Scholarpedia feels and looks like Wikipedia - the free encyclopedia that anyone can edit. Indeed, both are powered by the same program - MediaWiki. Both allow visitors to review and modify articles simply by clicking on the edit this article link. However, Scholarpedia differs from Wikipedia in some very important ways: Each article is written by an expert (invited or elected by the public). Each article is anonymously peer reviewed to ensure accurate and reliable information. Each article has a curator - typically its author -- who is responsible for its content. Any modification of the article needs to be approved by the curator before it appears in the final, approved version." - Scholarpedia.com