don't know a lot of information demographically speaking because where he don't ask people too muchnformation anecdotally, we see a wide rain of -- range of people. i've had people tell me my whole senior center is getting on twitter. there's over 4 billion mobile phones in use on the planet. every one is a twitter ready device. because twitter works on texting sms. that's most inspiring to me, there's only 1.5 billion web users. those are fwit twitter ready. you put them together, you have a wide swath of people that will have access to the network. what surprises me about s.m.s., it is available in parts of the world. they can ask a question on twitter. does anyone know if i could get a better price for for this grain? then they have access to a real-time network. and someone says you could charge double. and then that person's life has been changed because they could charge double. and two, we know the price of grain. that could be interesting information. twitter has on top of it, search functionality. everythings as it comes in in real-time is indexed at subsecond speed. you could search