The "home page" feature in your browser harks back to an earlier time when launching your browser for the first time each day was like opening the morning paper over breakfast. You'd stare at the headlines on Yahoo, MSN or whatever site your browser had been set to load first, read a little news and then head off to other places on the Internet. However, today, we're opening new browser windows every few minutes, and the browser's home page that opens with each one is wasting our time and bandwidth.
To set your home page to be blank in IE, you can navigate to about:blank and click the Use Current button in Settings. In Firefox, you can specifically choose "Show a blank page" in the Options menu, while Chrome shows you a blank tab by default.