I experimented a little with this a while back but I didn't get very far. My first assumption was to rely on keywords in the article, and match them with articl

I experimented a little with this a while back but I didn't get very far. My first assumption was to rely on keywords in the article, and match them with articles from other sources, but I wasn't able to find a good solution to finding those. My suggestion would be to go that route however.