I have no idea on the actual effectiveness of the service that this webiste (listed below) actually has. You might want to give it a go if your up to it. It's kind of an AIO account killer website.
Click on the 'Blacklist' panel and have a look if you like.Quote:
Do you care about your personal data? We provide instructions to remove your account or public profile on most popular websites, including Skype, Facebook, Windows Live, Hotmail / Live, Twitter, MSN / Messenger, Google and many more. Want to create an account somewhere? Check our Blacklist first to see if it's even possible to remove your profile!
Here's the link to the aforementioned website.