The language that is quickly taking over every platform. From frameworks like MooTools and jQuery to server-side fun with node.js. There has never been a time that JavaScript has been this important.
All other languages outside of JavaScript. HTML, CSS, Ruby, PHP, frameworks, shell scripting and more. It's been said that any developer worth his salt will learn a new language each year.
Tips, tricks, and solid techniques for building beautiful, efficient, and cross browser websites. It's what I do every day, and each day I look for better ways to do it.
Stuff that makes software development better, faster, or just more fun. From command line stuff like Git, to applications like TextMate, to rolling your own solutions.
Every current or aspiring developer, member of a team or work-from-home freelancer, ought to be using source control for their code. It allows you to make mistakes and be experimental without worrying about getting back to an application that once worked.
I've gotten some great response to combining MooTools Class with jQuery, therefore, I've created a site dedicated to the technique.
It's not just a gallery plugin, this thing can handle any content that shares the same space (tabs, news feeds, etc.) It's now super flexible after I've used it in production on several sites and discovered scenarios I hadn't thought of before.

