I’ve been a huge fan of Derek Sivers for several years now, and I have seen, listened, or read over a dozen interviews and presentations with him, making me something of a groupie. Today’s App Sumo deal is the longest presentation I’ve seen of his, and chock full of data and useful advice.
Editor’s Note
This blog post originally appeared on the Profit Awareness Blog – as that app is up for sale, it has been consolidated into the main Digital Tool Factory blog.
