I am sorry to say that most of the projects I work on lack this very valuable step. It is often weeks into a project where missing elements are found and I lament the day that it was decided that we ‘skip’ the wireframing step. In fact it is happening right now.
I have only breezed through this article quickly, but it is bookmarked and ready to be revisited [as soon as I can squeeze it in]. In the meantime I really recommend you take a look yourself at Cameron Chapman’s Ultimate Guide to Website Wireframing.
Special thanks to @boagworld for sending the tweet.