Since we launched I've been tracking our placing on Google's search result for the term "comic strip". I have no idea if that is a useful metric, but aside from readership (now about 10,000 more or less) and email subscribers (about half that) it's the only metric I have. When we first showed up we were something like #56. Now we're up to #15, with almost 400 incoming links. I guess people like us.