Google is a great example.

Two in the adult industry industry that I think illustrate that domain name doesn't have to mean much...

corbinfisher.com
randyblue.com

Who ever heard of either of those 3-4 years ago, or had any idea what they mean? Yet these are two very visible names among almost anyone who surfs gay porn today.

For my money, it's a lot easier to *create* branding for a name like Corbin Fisher than it is to get people to remember "hot-american-college-boys.com" or even "amateurcollegemen.com." This assumes, of course, that you have the money/time/energy to create the branding from scratch.

Boyfunk.com is sort of another example. My former business partner had a totally different concept of what Boyfunk was about -- literally, "boy funk" as in, dirty underwear and such... but he recruited cute guys, and the site sorta developed a vibe around that, so the name really has little to do with what it's now known for.