Speaking of retouching, have you visited Retouched.net? It’s a great resource for learning about retouching — arguably the final frontier for most digital photographers — as well as many aspects of digital photography in general.
Retouched.net features article, columns, and video tutorials. The site also features lots of ads, links and clutter that can make it a bit overwhelming. But if you get past the overwhelm, you’ll find gobs of timely and helpful content about postproduction.
Particularly nice is that Retouched.net features artist profiles, whose insights help us think about retouching more as an art and less a set of Photoshop techniques.