I use InstaPaper for stuff that I want to "read later" as is its intended purpose, or stuff that think I might want to return to occasionally. I like that I can get to it from anywhere, doesn't matter if I'm using my local machine.

For pages I use all the time... I have a local HTML file as my home page. It's just a simple set of links organized into a few broad categories. Faster than navigating the browser's bookmarks, for me, though slightly more work to update.