The internet started to get popular, but Big Money didn't like the lack of control or some of the shadier practices that went on there.
So America OnLine (among others) was created, and aggressively sold to consumers. And it provided "internet". Sort of. It was a very walled garden. But you did start seeing "AOL Keyword: MOVIE TITLE" and such in advertising and on TV. In the long term, how well did that work out?
Yes, AOL still (technically) exists, but it is not the walled garden it used to be. It's now a pretty standard (if large) ISP. Providing access to the big, bad internet it was meant to replace.