From Runblogger: New Trends in the Prevention and Treatment of Running Injury, and a Healthy Dose of Natural Running

Pete Larson of Runblogger, one of the best if not the best scientific running blogs out there has a great summary of the recent running injury and natural running summit Pete attended in West Virginia.  Key points:

• Moderation in changing training and surfaces and listening to aches and pains. 
• More natural running gear- lower heel toe drop less constructed shoes, also adopted in moderation, 

are the keys to healthier and happier athletics in general and running.

As Pete summarized any change should be "Gradual and Progressive"