[jyl]

Iran GDP - gives me a single number.
Iran revolution - does not compute. But suggests I try
"Units:
information about a unit revolution
Countries:
information about a country Iran"
whatever that means
Iran demographics - gives me some basic info.
Iran oil production - gives me 2007 4.7X10^6 bbl/day. Nothing about other years, trends, causes, etc.

Still not impressed.

So far, looks like a place to go if I have a narrow and obvious question that is answered by a single number and I want that answer fast.