What apps and tools have you used to track your job search?

I hasten to add that I LOVE MY JOB AND I AM NOT GOING ANYWHERE. I do, however, have a freelance assignment to write a round-up of useful applications for tracking the jobs to which you applied, interviewed, etc. This is purely a "here's what's available and what each tool promises" story. I'm not writing a hands-on review, and nobody's going to be quoted.

So what have you used? And what did you think of it?