I go off on tangents a lot, too. Like, yesterday I spent a couple hours researching Portuguese naming conventions (which I've already done some research on) and found a lovely paper detailing other European naming conventions. Bookmarked the crap out of that.
Well. Right now, I've got three tabs open for one character: one for a university in Munich and the second about the steps to becoming a doctor in Europe and the third being a wiki entry about a superpower. Then, for a separate character, I've got another three tabs about clothing laws and public indecency in Europe. c:
Does the character you did research for have an unusual name, then?