Regex. I have been aware of its existence for probably a year or so, and can generally recognize when it should be utilized, but I am far from being able to make the leap from a string-pattern-identifying algorithm in my brain straight to a regex. I usually have to - at that point - refer to a book or online resource.

Front-end design. I can make a beautiful back-end, but what does it matter to anyone but fellow hackers if a front-end end-user thing doesn't look good, is useful to beginners, but is also useful to those who've been around the block a bit?

I actually have little experience in neither, but even so, my interest leans towards back-end design. Could you recommend any resources for teaching myself?

Enough mathematics to understand Andrew Wiles' proof of Fermat's Last Theorem. It's probably an unrealistic goal but I'm trying.

Nimrod, German, efficient functional programming, algorithmic analysis & design, and analytic number theory

I want to develop apps for FirefoxOS and UbuntuOS.

Ruby on Rails and Obj-C/iOS

Scheme and Pharo Smalltalk; Spanish.

Go!