I’m sure the closing quote below is very comforting to booksellers
The new service is an extension of Google Books, a book-search site linked to the company's main Web search engine. Launched in 2004, it displays full copies or previews of millions of books and points consumers to places where they could be purchased, including Amazon.com. Now Google will sell books directly through an online store and allow others, including independent bookstores, to sell Google eBooks on their own sites and get a share of the revenue. Mr. Turvey [a director of strategic partnerships at Google] said the company will not require other sellers to give Google their customers' financial information or email addresses. "We're not interested in pursuing the customers of booksellers," he said.