Here are a pair of recent articles that I've found pretty interesting. They confirm a few things that I've certainly noticed in reading to my daughter, and I'm heartened to think that all of the great time we spend reading together is paying off in a number of ways. At night, we've gotten to the point where we just tell each other a story. Lyla absolutely adores telling a story from scratch, and using sound effects (scratching, knocking, etc.) to add a dimension to the tale.
Take a look at these when you have the time: