Twitter is about more than telling people what kind of sandwich you had for lunch and Facebook is about more than posting party pictures from your days in college. The next time people tell you that social media is worthless, point them to this post. These are very real ways new media sites have made my life easier: When I was in Las Vegas, a city I don’t know well, for BlogWorld 2010 I asked for directions to a bar I was trying to find by tweeting at a friend who had just checked in there on Foursquare. I commonly ask for recommendations for movies, music, and other forms of entertainment on Twitter. As a writer, if I meet someone who might have freelance work for me, I can connect with them on LinkedIn when I get home or even with my smart phone before I even leave the party rather than relying on them to remember my website or having to keep track of a business card. Speaking of work, if you need a job, you can mention it to your friends/followers to see if anyone know...