Is there any service which allows you to delete accounts on many websites with one click each? Or at least hosts a list of manuals for many web apps?
closed as off topic by Eight Days of Malaise, Sathya♦ Oct 3 '12 at 4:25
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Delete you account is what you need!
It gives you step by step guides on how to delete your account on all the major social network, blogging, shopping sites and services across the web.
There was a recent article about this on Smashing Magazine:
The article includes details on how difficult it is to remove your account (or if it is even possible!) and just how 'permanent' the deletion is.
Sites covered are: Facebook, Twitter, MySpace, LinkedIn, Google, Ebay, Wikipedia, Flickr/Yahoo!, Windows Live, Stumbleupon, Wordpress.com, Amazon, YouTube and PayPal.