[1] First, click tools on your browser's menu bar and select 'options' or 'internet options'.

[2] The options menu will pop up - next simply look for 'homepage' and type in your desired site. Note that each browser may have a different set up. Then simply click OK and your done! This is the page that will show up each time you click the home icon, and the startup page when you open your internet browser.

(click the image for a larger view)