The problem I have with blogging about running is the problem I have with politics. People develop a view of how they want to believe things are, then they seek out those who tell them what they want to hear; they cherrypick facts to get the ones that mesh with what they already believe and then twist the rest to fit.
You want to believe that there's some magic bullet, some little-known secret that will let you run faster with less effort. You stand at the starting line and look at people's gear, wondering if compression sleeves are the answer. You read somewhere that you only need to run for 8 minutes and eat goji berries and you wonder if it might be true. Your friends are taking classes in some new "ancient" way of getting in shape and it sounds like more fun than going for a run on a cold rainy day.
Roger Bannister broke the 4 minute mile barrier wearing leather shoes; any running shoes you buy are going to be better; as long as they fit (and that's a very important thing), a different pair of shoes are not going to make you a better runner. Bill Rodgers won the Boston Marathon on a diet of pizza and junk food; if he'd eaten "better," he'd have run no faster - a perfect diet creates at best a neutral environment, nothing you swallow will make you faster.
I say it's talent and hard work, pure and simple, that gets you to the finish line. And you go on to someone else, who might tell you what you want to hear.