PMI bookstore (www.pmibookstore.org) Provides general project management references materials and other self-study texts.
PMI eLearning Connection (www.pmi.org) Offers virtual, online seminars and study programs.
Commercial PMP prep courses Search PMI (www.pmi.org) for a listing of PMI Registered Education Providers that offer PMP exam prep courses. Many of the courses are now offered online.
Project Management Institute, 
PMI bookstore (www.pmibookstore.org) Provides general project management references materials and other self-study texts.