Wikipedia
NetGalley
NetGalley is a website initially launched in 2008 aimed towards the distribution of digital galley proofs of books, some of which have not yet been released. NetGalley was developed as an alternative to the production of paper galleys and has since evolved into a key marketing and publicity platform for publishers and authors. Publishers that offer e-galleys include Harlequin Enterprises, Penguin Books, Hachette, Random House, Simon & Schuster and many others in the US, Canada, UK and Australia. The site offers electronic galleys to "professional readers" such as book reviewers, journalists, librarians, professors, booksellers, and bloggers.