http://www.booksie.com/ You can post excerpts and it looks like you can post purchase links.
New and experienced authors and publishers can take advantage of BiblioScribe's free press release and article submission service to publicize their works.
Biblio Tweet http://www.biblioscribe.com/twitter-authors.php
http://hootsuite.com/ HootSuite Social Media Dashboard...FREE OPTION
Tweet Deck http://www.tweetdeck.com/
Bitly Helps you track, shorten and analyze your url https://bitly.com/
Storybook Software for plotting your novel http://www.novelist.ch/joomla/index.php/en/about-storybook
Book Hitch http://www.bookhitch.com/listtype.aspx Create a free listing.