I second this. I'm self-educated, do a lot of freelance work and end up working on a huge variety of projects. While I feel like I've got a pretty good handle on languages and general programming, sometimes it's really difficult to find good quality information on the specifics of how to implement project x on platform y.

Thanks for the input! I'll make note of these topics and look for some writers in these areas. I agree, I kind of hit a plateau in my technical skills, but these project based tutorials really helped push me forward again.