I just discovered Kindlegraph and wanted to share, in case you are not sure what it is. I just received Kindlegraphs from Debra Anastasia, Sylvain Reynard and E.L. James!
Since an author can't sign an e-book, Kindlegraph allows authors to send you a personal message that goes straight to your Kindle or Kindle app. You can also use a regular email address and get a PDF so no Kindle is necessary. You can also view your collection via the Kindlegraph site.This is a Free service for authors and readers.
Just go to Kindlegraph.com and sign in with your Twitter account to start requestng . There is a nice little video about it here.
**I have tagged the books that I know have Kindlegraphs available. Have fun! Getting one always puts a smile on my face. :)