How to remove your Shockwave.com account
Please use the removal link which leads to their webform: request removal using the form. Source: Yahoo Answers at https://answers.yahoo.com/question/index?qid=20110405151651AAMbarJ
Direct removal link: https://www.shockwave.com/help/contact_us.jsp
Helpful Trick: Removing online data
Publicly visible text/images often aren’t properly removed even when you succeed in removing an account. Try editing or removing them manually before removing the account itself. If you’re unsure what happens to your tracks: this can be found mostly in the Terms of Service/Privacy Policy; otherwise you can always contact Shockwave.com and ask personally. By the way, removal requests don’t necessarily mean your data will actually be removed (e.g. due to legal obligations).
Helpful Trick: Remove third-party logins
If you signed up for Shockwave.com using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Shockwave.com. Click here to find out how.