News.com reports that the Google Toolbar patent case is to proceed after Google's request for a summary judgment was denied. NetJumper sued Google around two years ago for patent infringement of retrieving information through a browser. From a quick look, you can see NetJumper has software named LinkZilla that enables "any website or software application to place a folder of links in user bookmarks with a single click." If you look at the Google Toolbar feature page, it is extremely similar to the "AutoLink" feature.
It seems like NetJumper recently introduced Bookmarks2, which may be incredibly similar to Google Toolbar version 4's bookmarks feature.