Have you folks used iRead on facebook/orkut/hi5/bebo ? iRead has the highest user base ~2M across all social networks and the independent site. It has lot more

Have you folks used iRead on facebook/orkut/hi5/bebo ? iRead has the highest user base ~2M across all social networks and the independent site. It has lot more features than library things too. They recently got acquired by Lulu and rebranded themselves as http://weread.com http://weread.com . check it out.