AS WEB TRAFFIC GROWS, CRASHES TAKE A BIGGER TOLL. True. And seem more often, sometimes — Technorati, for example, has been unreliable for months. Plus, a solution for one kind of question: “In March, Mr. Payne created downforeveryoneorjustme.com, as in, ‘Down for everyone, or just me?’ It lets visitors type in a Web address and see whether a site is generally inaccessible or whether the problem is with their own connection.”