In older versions of IE it was often difficult or impossible to select exactly the text you wanted to copy into an e-mail or a document. When you dragged the mouse to select text, you often selected adjacent paragraphs or columns also, even though you didn’t want them. IE8 finally solves this problem by imitating Firefox’s “caret browsing” feature, in which you select text by moving the arrow keys. Just press F7, or Page | Caret Browsing, and use the arrow keys or other navigation to find the place in the text where you want to start copying; hold down the Shift key and use the arrows or other navigation keys to extend the selection. Ctrl-C then copies the selected text to the clipboard. It would have been nice if Web browsers used F8 (the “extend selection” key in Microsoft Office) instead of F7 for this feature, but you can’t have everything.
Internet Explorer 8: Nine Things You Didn’t Know You Could Do – Solutions by PC Magazine

