These include Goodreads integration (Amazon bought the popular social reading and review site earlier this year); a Smart Lookup feature that streamlines the Dictionary, Wikipedia, and X-Ray (character and story notes
for some titles) look - up interface with a single,
easy - to - access set of tabs; Kindle Page Flip (a sort of picture - in - picture page -
scanning feature); and Vocabulary Builder, which keeps track of all the words you look up in the dictionary and
allows you to create flashcards to help you learn those those words.