Many people believe that the public library is the best possible resource. Send for the catalogs that look interesting to you. They are filled with resources which you may find helpful. If you are interested in finding out more about prepackaged curriculum or correspondence schools, write for their brochures and informative flyers.
Homeschooling conferences and learning fairs are another place for looking at materials and getting ideas. Check with your local or state support groups for information about these.