I agree with Spectral Dragon. There are two main areas I'm thinking of: the first are introductions:: rationality ideas for people with no rationality background, presented clearly and not dependant on having read ALL of EY's posts, and also introductions to major topics related to science, maths, computer science and the like, written by rationalists - Like the Causal Disgrams post from the new Epistemology sequence. For instance, explaining what maths and physics are without referring to a 'non-natural platonic realm of being' etc. Clear and not confused, rather than clearly confused. Also, applying rationality to (teenage) life - that is, life rationality for newcomers to that particular field. All types of interpersonal relationships, how signalling and status fit into everything, how to organise your life now that you need to think for yourself (etc).

That would be brilliant :)