Is that information even there anymore? I've sort of taken for granted that like good API documentation, whole subjects simply don't exist on the web in any depth. Maybe it is strictly a google problem, I definitely noticed a decline in quality when they started to combat link spamming. I guess at this point gaming google (sorry SEO) means that only people with commercial interests show up in the first 20 pages of any given search result. The result of most searches these days is either some reddit or stackoverflow like discussion board after the obligatory first page of links to pages trying to sell you shit.

Assuming that the information even exists, in a way, I think actual human curated links (aka like early yahoo.com) might be a better way to search if you could hire a few dozen people to start building them. I've even went down the thought process of building my own webcrawlers for the explicit purpose of building a personal search engine so that I could kill-file the few dozen sites that tend to show up as the default answers to 99% of google queries.