Internet Explorer 7...Tab Shortcuts....

These shortcuts are mentioned in IE itself!!!!
I discovered that today only.
And made a post out of it!!

Keyboard shortcuts

Open links in a new tab in the background CTRL+click
Open links in a new tab in the foreground CTRL+SHIFT+click
Open a new tab in the foreground CTRL+T
Open a new tab from the Address bar ALT+ENTER
Open a new tab from the search box ALT+ENTER
Open Quick Tabs (thumbnail view) CTRL+Q
Switch between tabs CTRL+TAB/CTRL+SHIFT+TAB
Switch to a specific tab number CTRL+n (n can be 1-8)
Switch to the last tab CTRL+9
Close current tab CTRL+W
Close all tabs ALT+F4
Close other tabs CTRL+ALT+F4

Mouse shortcuts

Open a link in a background tab Click the middle mouse button on a link
Open a new tab Double-click the empty space to the right of the last tab
Close a tab Click the middle mouse button on the tab

Most of you would have known this already!
But people who did not know this,would have found it very useful!!!
For those who are still using IE6, Click here to download IE7.