Why do i get junk E-mail on items that i had searched on?

example--%26gt; When i searched for airline prices online i then begun to receive spam on airfare deals. I ran anti spyware programs and they said there were no spyware in my computerWhy do i get junk E-mail on items that i had searched on?
You had to have clicked on something that required an email address. I search hundreds of internet sites daily, and never get an email message from them.
Did you sign-up for anything when you went to this site to view airfares? I would also make sure that your anti-spy is up to date.Why do i get junk E-mail on items that i had searched on?
update your spyware... but if you used your email to sign into a website you might not have opted out of their affiliate site advertizing circle...

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