Gameproducer.net has some nice set of articles covering game production. Highlights include:

“I’ve finished my game - now what?”. which is about the ideas you might want to encounter after finishing your games. Or maybe you should want to know before you start your document.

Another one is 8 ways to spark your creativity which is short, simple fun list of, well you know, as you guessed about creativity in general.

You can find the rest of the collection of articles here.