#5 in Google–how did this happen?

I got a note from someone this morning pointing out that when they searched for Ryze on Google, my page was the first member page that came up, and the 5th result overall. “How did this happen?” he asked.
I have no idea, I told him.
More guesses:
–My Ryze page is really my web bio/resume page, and I’ve used it as a link for BloggerCon and other events, which drove the page rank up.
–The Google Dance likes me.
–Pure dumb luck.
Any ideas? Please share.