In reply to lm610:
Personally I don't log climbs at all, but in my head anything I get up first go without weighting the gear I call onsight. If I've seconded it years ago, it's a slightly tarnished ascent. If there's chalk on it, I know it makes it easier, and I usually think "great, it's chalked" and consider the ascent onsight. I'll take any verbal or photographic beta going, it usually gives me a bit of extra confidence which I consider to be a good, helpful thing.
I think that people who get all precious about onsightness are a bit neurotic. For me, if I don't actually know what the holds are like from having been on them before, I still get the full thrill of the route. I don't look back any less fondly on routes I've done with stacks of beta because the experience was diminished. Half the time, verbal beta turns out to be utterly useless anyway - for me, what people said about Kelly's Overhang and Quietus were completely irrelevant in the end (the end of Quietus being lowered shamefully to the ground after repeated attempts at turning the lip...bloody gritstone).