pinboard.in --- from: http://pinboard.in/about/ http://pinboard.in/about/ "Pinboard also offers a personal web archive, at a cost of $25/year. Users who choose

pinboard.in --- from: http://pinboard.in/about/ http://pinboard.in/about/ "Pinboard also offers a personal web archive, at a cost of $25/year. Users who choose archiving get a permanent, cached copy of every bookmark they save, and can search the full text of their saved links. (The one-time signup fee counts towards the first year's subscription.)" Not sure how much more of a guarantee of permanence you get from them, but the fellow behind Pinboard has a great track record of business model innovation.