Ryan Singer of 37signals:

Problems with product and feature design often trace back to the initial approach. Either the problem wasn’t well defined, the concept wasn’t well defined, or – in the case of beginners and newcomers to a platform – your bag of tricks wasn’t adequate to address the problem. Questioning each of these areas can open up new insight and unblock you.

One of the best product strategy articles I’ve read. Ryan shows how to apply Jobs To Be Done to how software gets designed and built. Much like yesterday’s link, understanding the right things to build is crucial to building great products.