Increasing the readers of my blog

I read Fred Wilson's post about his blog today and was humbled by his numbers : 50,000 readers per month and about $30,000 in ad revenue that he donates to charity. That's an average of 1,600 readers and 80$ per day (I'm not trying to be exact). This information got me very interested in the statistics behind other blogs that I read now ... and for that matter, what tool(s) are best used to discover this information (other than Technorati).

I have my work cut out for me -- I'm currently average about 150 readers per day.