Air Force OTS is the most interactive 'all things becoming an Air Force Officer' resource I have found. The site is run by Officer Candidate School (OCS) graduates to assist all patrons interested in pursuing a career as a military officer (there are separate sites for all military branches). It is a forum - so it' s a great place to go if you have lots of questions. Check it out!
If you're looking for general information concerning Officer Training School (OTS), AFOTS.com is a good place to start. The personal statement and 'Surviving OTS' information is informative (note: it is based on one individual's 2013 OTS experience).
Air Force Journey (airforcejourney.com) provides a comprehensive breakdown of the OTS application process, which includes frequently updated Air Force Officer Selection Board Information.
For more 'front-end' Air Force information have a look at the .mil website: af.mil. If you're interested in learning more about a particular air force base, each installation maintains a website (e.g., Little Rock AFB). URL format is generally: www.BASENAME.af.mil, just punch in your desired base and you're good to go.
