I actually do my best to stay relatively anonymous online. I do things like use fake middle initials everywhere so if someone does google for my name specifically, if something pops up they may not realize it's me. I vastly prefer the relative anonymity of the internet.
To the point that I had a direct manager once tell me he couldn't find anything about me online, but I got hired due to the strength of my references. A VP was in the room at the time and she made a comment that was roughly "good, it means we'll keep him".
About 1-2 months after that this same VP told my direct manager to write me up over questions I asked to on an email chain to a department that was using the software I was working on. I had work w/i 3 days, put in my 2 week notice, and basically told them in no uncertain terms that they're not going to keep good talent treating them like that.
Just be really good at what you do, treat people well, and maintain the relationships you DO create.