Access to Inventory. Ad sales is Most Profitable when More Inventory is Accessible

Ross Mayfield hits it on the head. I learned this lesson from Jason Calacanis awhile ago (I can't find the discussion thread, though). 

No matter how good your writing is, if you don't have a full time sales guy selling ad inventory, you aren't making a living.  And therefore, the more writers you have - the more inventory you have - the easier it is to sell the inventory. The more inventory you have - the more money you make - the more sales people you can hire. And the cycle continues. Pretty simple formula.

So, if you are blogging for profit and you aren't playing on a team or teams or atleast have a sales team working for you, you won't be blogging for profit very long.

If you want on my team, give me a call.

(SideNote: this is also why google's API is exciting. Developers now have access to unlimited inventory. How long before a smart sales guy with a development team realizes this, though?)