You may be looking for the link where you can delete your online profiles like Facebook, Twitter, WordPress etc. This site will be a very handy one.
The website Just Delete Me is a collection of links which you can use to delete the profiles. Some of the sites does not provide direct links to delete your profiles, this page will provide information on how you can delete your profile, like feedly
Some websites like GoDaddy does not allow you to delete your profile, this site will display that kind of details too
when you click on Facebook Account deletion (you will have to login to Facebook too), it will display the confirmation page on Facebook to delete your Facebook profile