Internet Explorer 9 includes a new tab view that displays the sites you visit most frequently. The view can be accessed by clicking the new tab button or by navigating to about:Tabs in the address bar. Frequent sites listed are limited to 2 rows (10 total sites) on the screen but this can be customized with a simple registry tweak. With a little help you will be able to expand the most popular sites feature to create a useful dashboard to quickly load your favorite sites without typing in the addresses.
Get started by launching the Registry Editor. Click on the start button and type in regedit and hit Enter.
When Registry Editor loads, navigate through HKEY_CURRENT_USER, Software, Microsoft, Internet Explorer, TabbedBrowsing and NewTabPage.
Right click on NewTabPage and select New DWORD (32-bit) Value.
Name the new item NumRows and hit Enter.
Next, right click on NumRows and select Modify. Set the value for the number of rows you want and click OK.
Finally, close and restart Internet Explorer 9 and you should instantly see the result of your change.