Firefox's bookmark shortcuts are criminally underused. It just makes sense to me to hit CTRL-L (or CTRL-T and then CTRL-L if I want a new tab) and type "g chris lott" to ego surf or "flickrcc dancing monkeys" to search for Creative Commons licensed images on flickr, etc. Here's a list of my current collection of bookmark shortcuts and the key words I use, some of which you might find useful