Mark Nottingham (@mnot) Why Change HTTP? The Web Has Changed. Heavier and More Interactive HTTP Archive Performance = Attention = $$$ Courtesy Ilya Grigorik Mobile Is Here Courtesy Ilya Grigorik Web Engineering Today: Current Perf Techniques Spriting Inlining #globalheader { background:#707070; background: -o-linear-gradient(top, rgba(0, 0, 0, .2) 0, rgba(0, 0, 0, 0) 5%, rgba(0, 0, 0, 0) 97%, rgba