I forgot them on purpose because he's talking about the Internet, not networking, not BBSs (which AOL and Compuserve were just big versions of). AOL and Compuserve eventually made themselves just another part of the Internet, but before that, they were really irrelevant in relation to the Internet's federation. In fact, other than AOL being an ISP and a gateway to the Internet for many, the actual AOL service was completely irrelevant once Internet connections came along.