Internet Explorer 7 - Shortcuts

1.) Ctrl + T - Opens a new tab in the foreground.
2.) Ctrl + Click - Opens links in a new tab in the background.
3.) Ctrl + Shift + Click - Opens links in a new tab in the foreground.
4.) Alt + Enter - Opens a new tab from the address bar.
5.) Alt + Enter - It also opens a new tab from the search box.
6.) Ctrl + Q - Opens up quick tabs, which are thumbnail views.
7.) Ctrl + Tab or Ctrl + Shift + Tab - Allows you to switch between tabs.
8.) Ctrl + N - Switches to a specific tab number. In this case, N can equal anything between the numbers one and eight.
9.) Ctrl + 9 - Switches to the last tab.
10.) Ctrl + W - Closes the current tab.
11.) Ctrl + Alt + F4 - Closes other open tabs.
12.) Alt + F4 - Closes all the tabs.

Now, here are a few mouse shortcuts for you as well.
1.) Click the middle mouse button (if your mouse has one) on a link and it will open up that link in a background tab for you.
2.) Double click any empty space right next to the last tab you have open and it will open up a brand new tab.
3.) If you click on the middle mouse button on one of your tabs, it will close the tab for you.