If you're worried about the hundreds of social media networks out there, like Facebook, Digg etc. you can forget them. They are marginal at best, and if you have the time, by all means go ahead and use them. But start with the big two - your website and your Google profile. This is how you do it -
• Hire a pro to design a website for you. Make sure it's perfect. It doesn't have to be elaborate, in fact it really shouldn't be. The more complex your website is, the more it has a tendency to fail on different browsers or platforms. Keep it simple. Make sure that there are no misspelled words, no bad links. Make sure your designer is responsive to corrections.
• Have a Google Profile. You should do this yourself. This all about you. Show your real name, explain who you are. If you're like me, and people are interested in hiring you, or using your business, this is the place to put your best face forward. Yes, I know that some people use Yahoo, or Bing, but, well, most don't. People use Google. By the way, here is my Google Profile. I'm also on Google+ but that isn't absolutely necessary. Write about yourself in your Google Profile in the third person. If you want to see a good example, read an *about the author* for a book that you are reading. If necessary, hire a writer. Have a current photo. And never an *avatar*. When I go to visit a client about an important contract, I bring my face. I do not wear a mask.
And yes, this is about exposure, about promotion. This is making it easy for people to find you, and to find out about you. If you don't want people to know anything about you, don't post on the internet. If you do post on the internet, be sure it's going to do your company, and your image, some good.