I'm way too shy, please help
noodle: with respect to a blog, create a fresh anonymous online identity, and go from there.  no need to show it to people you know.  let it continue to be closed off so that you can comfortably show off your work.  include it on resumes only if it is applicable, where you can feel more comfort in the fact that you're putting a whole lot of yourself out on the line and that adding the blog is just a drop in the bucket.with respect to app/business, find a partner who is willing to be the face of the company, and operate behind them.  no one really has to know that you're supplying the code.