Downloading DOS games, text porn, and playing on MUDs. I think at the time Yahoo just had a list of categories under the search bar. Dialing in to local BBSes listed in the local computer free papers. Downloading with Zmodem and scanning for viruses with F-Prot. By the time I got a fast enough computer to use graphic browsers every site was trying to be a "portal" and launching its own two-bit email service.