I just came across a really neat tool released by Yahoo called YSlow.
The basic idea is simple: it is a Firefox add-on that can be used to analyze pages you view. This analysis gives you important insight into why a particular page loads slow.
If you are a web developer in charge of the front end components, I urge you to check this tool out.

Neat tool!
Previously I’ve only relied on the View Dependencies addon but this gives a much clearer picture.