Pocket is pretty good. It keeps the copy of the page so even if it’s gone, you can still read years later. Plus you can use their app to read things offline or

Pocket is pretty good. It keeps the copy of the page so even if it’s gone, you can still read years later. Plus you can use their app to read things offline or do search (where had I saw that?). One big issue is no support for pdf. So if you are in to reading research papers, try Diogo. It allows highlights and annotating and they stay in their server copy. Unfortunately diigo has turned out to be pretty buggy.