Where are you advertising in 2010? TV? Print? Radio? Online? Well, of course online! But, where online are you focusing your marketing efforts? According to Nielsen, if you're focusing all of your budget on search ads, you might be barking up the wrong tree. If you want to be where your consumers are actually hanging out, then social networks are the place to advertise: OK, so social networks see the greatest share of time, but which social networks?