I spent this past month reading Bill Gurley's fantastic posts on Above the Crowd.
Bill has been blogging since 1996 and it was fascinating to look back through time and see his thinking and thought process over these past 25 years, specifically as it applies to technology and consumer internet companies. The link at the bottom of the page is a compilation of all his posts and my favorite were: The Most Powerful Internet Metric of All, The Smartest Price War Ever, All Revenue is Not Created Equal, and The Thing I Love Most About Uber.