Title. I want to get all of the information surrounding Valenwood that I possibly can. The home of the Bosmeri, correct? It's a big forest? Is there a map of the region? Etc?

I personally think that Valenwood would be a proper setting for the next ES game. If there will be one. I think at some point Bethesda will sell the IP, probably not anytime soon, but it'll happen. Todd seems like he's kind of getting tired of it. I never really saw him break a smile one time during any of the interviews regarding Skyrim at E3 etc.

My first suggestion is to read TIL's race info for the http://www.imperial-library.info/content/races-tamriel-bosmer, then read the Pocket Guide sections on Valenwood, http://www.imperial-library.info/content/pocket-guide-empire-first-edition-aldmeri-dominion and http://www.imperial-library.info/content/pocket-guide-empire-third-edition-wild-remain-valenwood editions (It was part of the Aldmeri Dominion when the First Edition was written).

The most valuable Valenwood/Bosmer resource, in my opinion, is http://www.imperial-library.info/content/dance-fire, a fictional series that paints a fantastical image of life in Valenwood and Bosmeri culture. This is one of my favorite Elder Scrolls books, as it's so much fun to read.

i know the Op asked for a map but is there a map of valenwood anywhere?

http://www.google.com/search?q=map+valenwood&oe=utf-8&rls=org.mozilla:nl:official&client=firefox-a&um=1&ie=UTF-8&hl=en&tbm=isch&source=og&sa=N&tab=wi&ei=CMIXT7neGYqM-wai-oy8Cg&biw=1680&bih=946&sei=CsIXT-h5i7qEB7fstZcD

I don't think any of the maps are actually 100% accurate, as things tend to change a bit when Bethesda makes a game there... But they should be largely correct. Keep in mind that Falinesti can actually, or could at least move. So the location might be off.