This makes me nostalgic. Spent inordinate amounts of time writing terrible, unmaintainable Perl scripts and FTPing them to cgi-bin on free 5MB hosting plans on F2S and Netfirms. Most hosts wouldn't provide error logs, so there was nothing more than a 500 page from httpd to tell you that something had gone wrong. Debugging anything was an endeavor. Then of course, PHP came along and killed cgi-bin.
If I had to pick one thing to represent the CGI era, it would be Matt's FormMail [1].