Active: 7 Running Experts on Effective Long-Run Training, http://beta.active.com/running/articles/7-running-experts-on-effective-longrun-training
Runners World: Learn to go Longer and Be stronger, http://www.runnersworld.com/beginners/learn-to-go-longer-and-be-stronger
Nationwide Childrens: Tips for New Runners, http://www.nationwidechildrens.org/tips-for-new-runners-how-much-is-too-much
Go Run Again: Six Beginning Runner’s Tips for Long Distance Running, http://www.gorunagain.com/2013/05/04/plr-tips-long-distance-running/
TeensHealth: Safety Tips Running, http://kidshealth.org/teen/safety/sports_safety/safety_running.html
Harvard Health Publications: Walking Your Steps to Health, http://www.health.harvard.edu/newsletters/Harvard_Mens_Health_Watch/2009/August/Walking-Your-steps-to-health