How do you choose a good password?  And what's meant by "good" anyway?  Is a long password better than a short one?  What about a long one that consists of many short words? 

If you've ever wondered how hackers manage to crack passwords, and why some are more difficult to crack than others, there's a fascinating article at http://www.baekdal.com/tips/password-security-usability which is a very interesting read.

My thanks to reader Geert for alerting me to this.