Also, let me point out that it doesn't work on pages that aren't necessarily articles. For instance, someone did a search using : http://news.ycombinator.com/item?id=3390727
I've got an update coming down the tunnel to fix this, but it might be difficult with this page because there isn't much substance. I'll think more about how to solve this in a way that makes sense relevant to the rest of the pages out there. My main focus is to not write any code for edge cases, but to figure out a way to solve the whole of the web at once. :)