It's a quick thought, but what we could do is the following: Have a wiki-like site, where the community update source information about news items. On the items pages, they also make links to news articles on the web. Along with this there is an analysis tool, so if you see an article on a news site somewhere, you pass the URL to this site, and it will point you to the relevant wiki page based on the URLs that are set on the wiki page or by guessing the best one for you based on content and similarity to other news reports.