Just an FYI, you can export your bookmarks.
In firefox 5: Select "Bookmarks --> Show All Bookmarks" from the menu. A pop-up window named "Library" will display. Select the import and backup menu option and then the backup option. A save window will appear. You can save to anywhere - on your hard drive or to the zip that you use for other stuff or to a USB stick.
IE, Safari, and Chrome all have similar methods. If you need help, let me know what browser you're using and I'll try to track down the directions.