I'm going to start keeping a log, or journal, at work but that's to help me remember what's happened. And it won't be online.

They're a fad that will fade. Frankly, I don't give a tinker's damn about what someone thinks about marmalade or Bush, or about Kerry or their boyfriend. Sturgeon's Law applies to most things, but with blogs it approaches 1.0 faster and more closely than anything else in recent memory.

As to evidence -- evidence of what? A low grade of mental masturbation?