If you are interested in writing about places and times not your own, you might find Times and Places a helpful site to visit. The link is to a page with some general articles at the top, followed by more specific groups of links. Try it out and see if it works for you!
At A Celebration of Women Writers you can find writings from women throughout time and all over the world. I've only begun to look at it myself, but it looks like enough reading to keep you busy for a long time! Like at Times and Places linked above, you may find information and ideas here to help your own writing.
Are there one or two websites about literature and/or writing that you really like? Feel free to leave an url in the comments!