This site gives an excellent indepth discussion of the science of composting, why it is important to compost, how to build a compost pile, and materials needed for composting.
Another resource to help you compost. The compost trouble shooting section can assist with common problems.
More basic composting information with a special section on worm composting and how to build your own bin.
Updates and happenings related to manure management and composting in Illinois.
Need the specifics on how to compost livestock manure? This is a resource to help and includes information about composting rules and environmental regulations.