One of my little twitches is that I really don't like putting caching inmy programs. It's not because cache invalidation is hard, although itis. It's because resorting to caching is an admission of defeat: it'sadmitting that I can't make the actual code go fast enough.

In other words, I've failed to write code that's fast enough. Idon't think any programmer likes to fail; certainly I don't. I don'

If you're writing a web spider, what should you do when you see alink marked rel="nofollow" ?

In theory, you can do nothing different from any other link.It's not a formal specification, and the original description only talks about the resulting link not giving the target any credit.

In practice, on the Internet what people expect is in largepart defined by what the 800 pound gorillas do. And both Googleand MSN Search consider nofollow to be literal: don