Google Alerts can do that, but you are likely to get a lot of false positives.

I use google alerts for: my online name, my real name, TPLC, and then a couple other topics that are important to me.

That's how I found your blog.

I was wondering!

I need to start using google alerts again - thanks for the reminder!

I also use Google alerts..I have also have one set up for my son's name!

I use Google Alerts in the same way GingerTPLC does and for my kids so I can keep track of their digital footprint.

I agree w/everyone about using Google Alerts.