Publisher's Weekly reports that Rosetta Solutions has formally announced its new product and service, NetGalley. The online initiative will launch at BEA, with the mission of connecting publishers and "professional readers," and streamlining the galley distribution process. NetGalley will enable book publishers, reviewers, media, librarians, booksellers, bloggers, educators and others to access and share content and information about new titles. Publishers that have already signed on to a pilot program include St. Martin's, Hachette Book Group, Bloomsbury USA and Sourcebooks. Those houses…