Links thought-mapping.

So I go to Wikipedia, say, and on the one article I read leads me to ten other links, which I pull behind that article until I get ready to read it. Those articles lead me to ten other links, which lead to ten other links, etc., etc. All with the intention of reading them when I get to them. I want something that will thought-map the links, from one link to the other, so I can kind of look back and see the structure of how I got from Ramesses II to Manny Farber. Additionally, it will show the topics I was interested and didn't get around to reading, so I can go back later and explore them. Which leads me to my next idea.