Today, I received an email from sitepoint.com. The email was telling me about PHP testing techniques and articals. This is normal and I received many similar emails. The important point is that i was playing with some PHP code in the previous days, and i was looking for some points online. Receiving such email about with this contents is a big hole in our systems. It means that some online system (most probably google) is doing big job with our information collected from our searc queries along with our email addresses. Although this is a big challenge, but i don’t like to have holes in my system.