Patent wars and other epic battles where business and technology mix | http://geekhistory.com/content/patent-wars-and-other-epic-battles-where-business-and-technology-mix

The War of Currents | George Westinghouse used Tesla power to defeat Edison in Currents War  http://geekhistory.com/content/george-westinghouse-used-tesla-power-defeat-edison-currents-war

The war over television | 

The browser wars | The 1990s browser wars Microsoft IE versus Netscape Navigator http://geekhistory.com/content/1990s-browser-wars-microsoft-ie-versus-netscape-navigator

What about Apple versus Microsoft |