AbeBooks

I recently used google and ebay to try to find the cheapest copy of Dacher Keltner's Social Psychology textbook.  The cheapest I found was $54 from England.  I just found out about AbeBooks.   (Perhaps I'm the last to know.) This is a great resource.  It is the Orbitz (or Kayak) of book buying.  They had dozens of copies from $34.00.  So my ignorance cost me $20 this time.