Do you ever run out of books to read?  Want to know when there's a sale?
Here are some e-book sites you might find helpful.

Digital Book Today: www.digitalbooktoday.com
The Fussy Librarian (allows you to choose content preferences): www.thefussylibrarian.com
BookSends: www.booksends.com
Robin Reads: www.robinreads.com 
EbookSoda: www.ebooksoda.com
The Kindle Book Review: www.thekindlebookreview.net