I always loved Instapaper, but the single focus killed it for me. Pocket, which looks just as pretty (if not more so - the colors do add a lot), can also handle other types of media.
I would end up with about 10 videos on Pinboard, a handful of presentations, and a dozen articles by the end of a week. Pocket can handle all those. Instapaper meant I needed other services to fully capture all the media I wanted to deal with.