Firefox Search Plugins (I read that firefox, like cafepress and IP Switch are using Webside Story, so beware.):

• My Ego Times Site Search (may not be perfect)
• My Book Search via my Amazon Association. (may not be perfect)
• My Generic Product Search via my Amazon Association. (may not be perfect)
• Books via Canada (may not be perfect)
• Generic via Canada (may not be perfect)
• Cafe Press (may not be perfect)
• An Unofficial Scroogle Source