Possibly you typed in net or org instead of com. If so, some sob may have bought those addresses and put other stuff there.

Thanks to a good friend, I was able to get all three: com, net and org for my own site. It's a wise move because it prevents that kind of thing from happening. I take no credit for thinking of that. My friend told me what he'd done and I was impressed as I am by anyone who understands computers and the www.