In what aspect do you seek similarity? Project management tools, company philosophy, company with a book or two, company with a design blog? 37signals rightly

In what aspect do you seek similarity? Project management tools, company philosophy, company with a book or two, company with a design blog? 37signals rightly makes designers addicted to their culture, but if you ask me, I don't like their products. I bet there are tons of companies in Korea whose products I would not like.