What sources to use for assuming property value & rent inflation?

[Joe R.]

Through a variety of research I've been performing, I've come to find most people say the given average for a home's inflation, on an annual basis, is about 2% per year. Roughly the same goes for rent according to many sources I've read up on. 

I'm well aware this is exactly what it says - an average - and that hot housing markets and cities experience growth or stagnation can either appreciate or depreciate much faster than these figures. My question to you: What sources do you fellow BP members use to gather current rent prices, expected rent increases moving forward and expected housing value inflation moving forward to assess your property(ies) at?

Thanks!!!