[xubuntu] Launching folders, websites via keyboard shortcut

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http://ubuntuforums.org – Is there a way in Xubuntu to launch/open a folder via a keyboard shortcut? How about opening a website that way? Ive used the keyboard settings to create keyboard shortcuts to applications I use frequently but would love to do the same with other such things but do not see how to do so in keyboard settings. If it makes any difference, Im using a Logitech wireless keyboard and mouse. (Hardware)