According to Brad himself:
"On all the kids' computers we had our names blocked. They can't Google their mom and dad. I don't want to make myself dependent on what other people think."He also adds that they themselves don't go out searching for news on themselves: "We don't even notice all the noise."
As Brad is approaching the big 5-0 mark that he likes being an older man and that his thoughts get clearer as he grows older. He even mentioned that he and Jolie "would like to get married" as it would mean more for their kids.
I guess it does their kids some good, but won't they ever wonder what their parents do for work or anything? I mean I like Googling my name to see whatever comes up once in a while, so I'm pretty sure their kids would try their parents' names in the the near future.