This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
No. If you type in an URL in the browser, then the browser will send an HTTP GET request. There is no way you can change the behaviour of the browser so that it sends a POST request when you type in an address in the address bar.