In fact, if you can scan through the top 100 links or so listed in Google you see a virtual who's of the SEO industry. Let me point out a few of the more notable links : Links form Yahoo Search Blog, as well as the MSDN MSN search blog. Of course there's many from searchenginewatch.com, seomoz.com and searchenginejournal.com just to name a few.
So what the site accomplished by attending all the SES shows since late 2003? Well, the've built lots of good content which helps relay their authority status to engine like Google.
Further, they've gotten lots of quality inbound links from high profile related sites that are also considered authorities. Plus they've also built a reputation for being the place to go to find out about SES which means increased traffic to the site. not to mention that they've now probably got a well known brand.
In other words, if someone doesn't already know how to find the site, but they know the name of it, the person will search on an engine like Google looking for the domain name. Even if it's ranked #7 or 8 for the search term the site will get the click because the searcher is looking for that brand.
