Have you heard about Wikifarmer?
Most of us are familiar with Wikipedia, which is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
What about Wikifarmer? Similarly, it is a user created online farming library. Wikifarmer helps all farmers across the planet find valuable information regarding their existing or potential crops and livestock. The resource is designed to give practical solutions that can be applied by the average farmer.
Wikifarmer is available in 8 languages: English, Spanish, French, Arabic, Portuguese, Russian, Greek and Hindi. Users can submit content after registering themselves.
Why not review the Wikifarmer here