What technologies, other than ColdFusion, should a developer know?

Fusion Authority recently ran an article called What's Hot? What's Not? Where Do We Go From Here? subtitled "What technologies, other than ColdFusion, should a developer know?". Mike Henke followed up the theme with a post called "What's Hot & Where do we go from here?". I'm pretty sure I don't have the insight that other people have who have already written on the subject. But it seemed like a fun exercise, so I thought I would toss in my two cents with:

What technologies, other than ColdFusion, am I learning?

I'm not sure what technologies you should learn, but here are the ones that I am learning: [More]