Here are keyboard shortcuts for use with Internet Explorer. Most work on all versions since 4.01. Not an exhustive list, just those that I use often.
This scrolls downward a page at a time. Note that oftentimes a form control or a ActiveX object (like Flash) can have the focus and consume the keystroke.
ALT+Left Arrow and ALT+Right Arrow
Move backwards and forwards. Same as pressing the Back and Forward toolbar buttons. Very handy
Add the current page to Favorites without prompting
Move focus to the Address bar. This is handy when you have a search toolbar, as you can then press TAB and have the focus placed in the search text box.
Go to your home page
Open a new browser window
Switch to full-screen mode. Great when needing to maximize the viewing area