If you're a runner on Facebook, you've most likely seen the ads for all kinds of virtual runs. There are charity runs, princess runs, superhero runs, patriot runs, pretty much if you can think of it, it's out there. After seeing these ads pop up regularly on my Facebook and seeing my husband complete one, I decided to check it out for myself. I feel like half the fun of a 5k, is running it with a group of people. I mean it's more for the experience than the actual process of running, right?…