You wrote action=register after the address or something similar!
I was thinking that you annually wrote the address, so I went to who's online and replace "who" with "register" in the address. And it said registration agreement after the address (I'm using Safari)!
After that, I pressed enter and it went to the forum index. The I went to who's online and it said that I was registering for a new account!!
EDIT: Why would you have 34 sites open at the same time?!
Also, I see that I was online, but I wasn't really online, as I closed my computer without logging off. I was right...