Adult training represents a way into coding for millions of women who never learnt when they were younger. Meetups such as those run by organisations such as Women Who Code and Codebar can introduce women to the collaborative, problem-solving world of programming.
Jason Kottke on the still-ludicrous imbalance at most tech conferences. This issue isn't going to go away. Conference organisers need to stop being part of the problem and become part of the solution.