In addition, start a blog for the pieces you can make public. Blogs have so many other benefits that you should be doing one anyway (especially if you are also

In addition, start a blog for the pieces you can make public. Blogs have so many other benefits that you should be doing one anyway (especially if you are also involved in startups). That said, writing about programming on your public blog is scary because you (usually) know that whatever topic you write on there are people who know more about that topic. You just have to get over that and learn to embrace the benefits of the conversations that ensue. Or write to a private audience.