So, exactly what is this new epidemic? Well, let’s start by looking at some of the most common symptoms, many of which you have probably noticed. They are easy to spot, and as with many other conditions, they often appear in conjunction with each other. (This is why the contagion spreads so effectively — seemingly independent symptoms grow more infectious when combined with others.)

via Symptoms Of An Epidemic: Web Design Trends | Smashing UX Design.