Finding Out Rent Prices in Areas

[Melinda Smith]

This is probably a very basic question, but I'm a newbie and haven't found anything via the search option for my question. I live in the DFW area where rent prices fluctuate depending on which part of the metroplex you are in (which is probably typical in most places). Other than just knowing the areas you want to focus on and through experience, are there websites that you use to quickly determine the rental comps? TIA!