The idea is that each map is open for contributions so all maps can be improved with the help of the community. Right now new things can be added by adding things directly to the JSON code that generates these maps but soon we will have a visual editor to simply this process even further.

And we provide a fallback search to DuckDuckGo in cases where no map is found for what you are searching for. We are also thinking of releasing a browser extension that will do what you proposed. You collect links from outside and then come back to our search engine and help improve it.