With convenient features like Send to Kindle and Shelfari integration, Kindle for Android is a rock-solid e-reader app, especially for anyone already invested in the Amazon ecosystem.
New book-sharing site looks too bright and cheery, needs more flexibility.
Like books? Like book recommendations? Give Shelfari a try.
The online retailer is buying Shelfari, a site that allows users to create virtual bookshelves and share title lists with friends.