I'm glad you like it! I didn't even think about saving the scroll position, that's actually a really good idea. The paper you're referring to sounds a lot like Vannevar Bush's concept of the "Memex", which was a precursor to modern hyperlinks.

I do think that a huge opportunity has been missed by the major browser vendors in relation to bookmarks. That area of technology has been pretty stagnant throughout the history of the internet, which seems odd given the fact that saving links is such a basic necessity.