I hate spam, everyone hates spam. There’s a little trick you can do while signing up to a website. If you do this with every site you sign up to it will make it easier to trace where spam is coming from. Lets say user@gmail.com is your email address. By adding a + symbol and the site name like so user+sitename@gmail.com.

By adding the +sitename you can still receive the email just like normal, just in the details section of the email will say the +sitename, making it easy to see where the spam is coming from. You can then use the Filter in Gmail to stop the spam getting into your inbox.