I was reading up on the division between the Official IRA and the Provos last night, which was kind of interesting.
I'm actually surprised by how accurate the entries on Northern Ireland are, e.g. the wikis on Enoch Powell, Ian Paisley, the INLA, IRA, David Trimble, Michael Collins, etc...
Usually you don't expect accuracy or balance from Wikipedia, but I guess that subject is one of those rare exceptions.
I think it's because one of the main Wikipedians over there is actually from Ireland.