Kim Krause and Danny Sullivan both chipped in with great posts on the subject of the history of people, events and operations in the SEO world.

From Danny:

...it's also important to remember that if we do have A-Lists, B-Lists or whatever, no one's really going to completely agree on them. There are people at WebmasterWorld who simply live in that space look up only to those in the community there. Pick another forum, and you'll find the same. An "A-Lister" wading in isn't necessarily going to carry that A-List reputation earned in other places over. They'll either earn it anew or gain it because some in the "new" community they've entered with uprep them to others, because they feel it is deserved.

Beyond this, you've got people who have never, ever been to a search forum at all -- yet they can be successful search marketers. Life does not revolve around the forums. You've also got people who haven't been to a single search conference, or not read a particular blog, newsletter, whatever. Who is important to them may be completely different than someone else. Overall, as I explained in my keynote, we have a variety of SEO communities and leaders within those.

From Kim:

Those were the days when SEO was fun as heck to do. There were lots of search engines to get client web sites into, not just one or two like today. In my day, we had 10 strong contenders and lots of minors to play with. Each of them refused to sit still for long. They changed business models constantly. Part of my work was just keeping up with these changes, passing them on to clients and making adjustments to submission campaigns. Because, you see, in the old days, we submitted web sites to search engines and directories for clients.

We tracked progress. We tracked rank. There was no Page Rank score. There were few fees for submission. There were many tools to use, including software and web-based submission software, but hand-submitters like me were in demand because we oozed the thrill of SEO. There were scams everywhere and it became one of my own personal missions to alert web site owners on what to look out for.

Since I'm a relative newbie to the SEO space (having only been actively involved on forums, etc. since 2003), I love these kinds of posts. After all, if you don't know where you've been, you can't know where you're going (and, perhaps more importantly, you can't empathize and get drunk with folks who do).