A few weeks ago Catharine Smith published her weekly Top Tweets list at Huffington Post. Personally, I found the first one, shown here, a bit depressing: “first tweet from the top of the world, thanks to the awesome XYZ handset!”. I know perfectly well that to practice mountaineering (or any other activity, really) at that level, full time, you need sponsors and you need (within certain limits) to make them happy.