After I submitted an online application, they sent me a job skills test (formatting .docs to match PDFs) and gave me three days to do it. A day after I turned it in, I got a request for a 20 minute phone interview, which happened less than a week later. The interviewer (a Book Development Associate herself) was very friendly and polite, and didn't ask anything out of the ordinary. I had a second phone interview about a week after that, with someone in a more managerial position, who also didn't ask me anything I didn't expect. My in-person interview was scheduled for about a week after that. Throughout all of this, they responded to me very quickly--the longest wait time for a response was probably a day and a half, which I took to be a very good sign.
My in-person ("on-site") interview went well as well; I filled out a paper application, spoke with two BDAs (one of whom was my first interviewer), dld a paper-and-pen edit of an online textbook page, and then had a long talk in the office of my second interviewer. Basically all three of them asked the same questions--why do you want to work here, tell me about your background, etc.--and in the last interview they also did a quick lesson on Dreamweaver/HTML and then asked me to recreate what they'd just shown me, to see how I was at on-the-spot learning. The on-site interview lasted for a little under three hours. At the end, I was told that I would hear back from them within a week and a half, since they had only one more candidate to interview, but the interviewer hinted at positivity.
When I didn't hear from them in two weeks, I emailed them just to check in. Two days later I got a response thanking me for my patience and letting me know that they were still deciding. I didn't hear from them again until a month after my on-site interview date, when I got an impersonal form email letting me know that my "background and qualifications [were] not fit for [their] needs at this time."