It offers an alternative to tabbed multi-browsing by opening four browser panes in one program.

QuadraSite is a new Internet browser. It offers an alternative to tabbed multi-browsing by opening four browser panes in one program. You can store groups of four webpages as a QuadLink and return to them with a single click. A host of enhanced features are offered, including Popup Prison, advanced web searching and full drag and drop functionality. The most popular feature is QuadLuck. You simple enter a search query and hit the QuadLuck button to be taken to four search results (As returned by Google). Further clicks on QuadLuck will take you to additional sets of results until Google runs out of answers.