Tim – No matter how good your material is, too much of it can cause feed-overwhelm and unsubscribes. Based on input from close to a dozen top bloggers I’ve interviewed, it takes an average of three days for a new post to propagate well in the blogosphere. If you write too often, pushing down the previous post and its visibility, you decrease the reach of each post, run the risk of increasing unsubscribes, and create more work for yourself.
Test posting 2-4 times per week—my preference is two—and don’t feel compelled to keep up with the frequency “you have to post three times before lunch” Joneses. Quality, not quantity, is what spreads. Link.