Ultimate Guide: How To Choose a Publishing Blog

Ok, you have written this awesome, spectacular post and you have resisted the urge to post it on your own blog and you've decided it would make sense to find a home for it on a publishing blog with a lot more traffic than your own. How do you decide where to publish it? It would be great if Darren Rowse, of ProBlogger.net were knocking at your door for the next masterpiece of writing, or Pete Cashmore of Mashable.com called you up, personally.