I use Pocket (I think it used to be called Read It Later) to save interesting things I find or want to read later. If you create an account, you can link it between devices (phones, laptops, etc.) I have the app installed in my browser (Chromium) as well as on my phone (Galaxy S4). So if I'm on my phone and find a long but interesting article that I would rather read on a full sized screen, I can save it to Pocket on my phone, then open up the app in my browser and go to the site from there. It also supports tagging pages so it's easier to find in the future. I don't like the idea of having a 3rd party store all of the sites I'm interested in though, so that's one downside. But other than that it's great.
Adding to that. To avoid that an article/blogpost gets lost because the website does not exist or is taken down one could use Evernote to store whole articles. This can also be combined with Pocket. By using If This Then That (you can think or it as an internet automation tool) you could set up a "recipe" that stores every starred/favorite Pocket article as a whole webpage in Evernote.