A lot of websites are selling email address to spammers. Here is a workaround how to find those who sell your email address to spammers by using gmail address while registering in websites.
I am using the same magic for which I used to create your notes using gmail account.
In normal case famous websites are selling these email address to spammers. So while registering in websites use the combination of user name + website firstname.lastname@example.org.
Suppose your gmail user name is `user` and website you registering is `http://www.xyz.com`, then while entering the email address in registration field use the combination email@example.com. As I mentioned in my earlier post that gmail won’t recognize anything after a `+` symbol. If there is any confirmation mail for registration it will definitely reach your mail box.
When ever you get a spam mail check out the ‘show details’ that will reveal you who sell your email address to spammers.
So next time while registering in sites use the combination I suggested and try to find out who all are selling those email address to spammers and do comment those websites here. So that we can collect the database.