So you’ve decided to start blogging and — as I suggested last week — you downloaded and installed a copy of Flock. Now what? Well before we start playing with the new toy we have a decision to make. It’s the most important decision you make as a blogger.  What slice of the pie do you want? If you look at any popular blog site you know which slice of the audience pie they are after, which theme their blog posts revolve around. Pick any of your favorite blogs and see if I’m not right. Let me pick one for you — Over at the Otherworld Diner they deliver their…