Extension Offices

One place to get information on composting is through your local extension office. The extension offices are funded and maintained through the land grand university systems in all states. It is usually the one that provides horticultural information. Worm composting is just one of their areas of expertise. They will have written material available for your information and can advise you of the pitfalls concerning composting in your area of the country. Most of the extension offices have their own web sites now so you might be able to save yourself a trip by goggling worm composting and your state.