I can honestly say I never read a company's blog. Unless it's about tech or actual news worthy, it's not going to help much. Perhaps if you held contests on your blog, such as user submissions, etc. Something to get the user to interact with - sure. But posting about shirts and the fact it's 50% cotton, 50% nylon and 100% badass just doesn't do it for me. Just my 2 cents as a consumer and developer.