I recently stumbled on two different JavaScript loaders – labjs and runjs. Each can help you manage loading JavaScript dependancies for your projects, including (it seems) specifying a load order. If you’ve ever hit a situation where certain JS files needed to be loaded before others, you’ve hit the problem that JavaScript loaders are addressing. There’s a bit of an interesting comparison/thread between labjs and runjs here.

What other JavaScript loaders do you know about or use?