diigo. You can basically use it forever free. Payed version is for stuff that is beyond bookmarking, like big amount of annotations, HTML/PDF cache, teams etc.

diigo. You can basically use it forever free. Payed version is for stuff that is beyond bookmarking, like big amount of annotations, HTML/PDF cache, teams etc. There are versions for all browsers and mobile phones. You can export everything, so no lock in. You organize stuff via tags. You can mass edit tags. Its really good, dont look for anything else.