OMG, I just googled my email name, not the whole address, just the name. It came up with 3 pages of links of probably every place I've ever been on the internet!
Yes be very careful with your email address. I posted on our local CraigsList and somehow, because I emailed back to someone he was able to Google and find my address!
I don't know how you can do this. But it sure scared the living daylights out of me!