Read this post over at Nathan Bransford's blog and it hit home for me since I have been thinking a lot about setting lately.
Pretty sure I have mentioned here in the past that I have a series of stories that I've been writing that are all set in one place over a period of time. The stories all take place over several decades in the same setting except the setting evolves. There are constants, however, that the reader can get comfortable with. Anyway, that's a horrible job of explaining my setting, but read the post. It's a good one. It made me feel like i am doing something right.