When reading the article I was remembering the words of Dominique Vidal, former Yahoo MD Europe, quoted by Criteo's cofounder Rudelle in his book: "Yahoo had everything to be Google. But when we reached a peak of users, we stopped investing in R&D to focus on other expenses. That is the most terrible mistake we did". When you look at Google or Facebook and their R&D investments in non core-business projects, I am definitely thinking that someone got Yahoo's lessons right