dizcrazy,
That's not necessarily so. We tend to be very quick to blame the websites, however it's also very possible that the culprit is actually on your own computer.
I highly recommend that you go to
http://www.spysweeper.com and download the program. You can use it for free, you have to pay if you want to subscribe and get the updates.
There are a number of programs, known as spyware, adware and malware, that can be installed on your computer without you even knowing it. I
thought I was secure against them - although I have a cable modem I'm connected through a router which blocks off virtually all attempts to hack into my system. I have Norton Systemworks running all the time in the background, so I'm safe from viruses. And I'd know if someone tried to install a program on my computer, wouldn't I?
NOPE!
I knew I had a problem one day when I had an extra toolbar that wouldn't go away. I ran AdAware (another popular program) and it found spyware. I hadn't installed anything - not a downloaded program, not an email attachment, nothing. Adaware couldn't remove the file. Spysweeper did.
Another nice thing about Spysweeper is that sometimes there are programs on your computer that are technically spyware, but you need them for other programs to run. Norton uses Backweb for instance. Adaware will let you delete them without warning - Spysweeper will tell you that you might not want to delete them.
You can also right-click on the description of any spyware it's found and it will tell you what it does.
SO - it's possible that you have a piece of spyware on your computer that "saw" you create the Ebay account and register that email address for it, submitted that information to wherever it's programmed to and that's how you received the email.
The Internet can be a scary place. Wonderful, crazy, and informative - yes. But there are dark alleyways and sometimes we don't know when we're walking down one.