"With Version 5.0, Diigo moves one step further towards its vision of providing the best cloud-based information management service that enables users to collect, highlight, access and share a variety of information, on a variety of devices."
"Diigo is a social bookmark service. A social bookmark service is like the Favorites in Internet Explorer, or Bookmarks in other web browsers, like Firefox. However, instead of saving a URL to your computer, you save it on the internet. This has a number of advantages: ..."