Diigo is about “Social Annotation”. By combining social bookmarking, clippings, in situ annotation, tagging, full-text search, easy sharing and interactions, Diigo offers a powerful personal tool and a rich social platform for knowledge users, and in the process, turns the entire web into a writable, participatory and interactive media - Wade Ren. Andrew Filev of Wrike and Victor Karamalis, Authenticated Apparel Wade Ren of Diigo