Scam Please reply

Unfortunately, the site you've quoted, Stewret, is not an official Blizzard website. If you visited the site and entered your account's login information, my advice would be to immediately complete these steps:

1) Reset your Battle.net account password. If you are still able to log into Account Management, you can complete the reset from the main page: https://us.battle.net/account

2) Once your password is reset, create a new email address for your Battle.net account and make sure the username and password for it are unique. This means you will want to avoid using a username and/or password that you already use or have used online before (e.g. WoW character names, forum handles, instant message screennames, etc — don't use these). Once this address is registered to your Battle.net account, do not use it for any other service.

3) After your new email address is registered, reset your Battle.net password again.

This should help prevent an unauthorized party from accessing your account (provided that no malware was installed as a result of visiting the site). You'll still want to check for malware, though, and to do that, I'd encourage you to visit this page for instructions and recommendations:

Antivirus Software and Anti-Spyware Software
http://us.blizzard.com/support/article.xml?locale=en_US&articleId=30812

If your searches/scans return any results, repeat the process above again to help safeguard your account.