"Revenews notes that even before Bilski patents such as this were dodgy, citing the fate of the Amazon One-Click patent. If the Cygnus name rings a bell, an outfit called Cygnus Telecommunications LLC acquired a patent on callbacks in 1999. Their enforcement attempt against AT&T eventually failed earlier this year. […] Amit Chowdhry of The Pulse pulled a flow chart of the patented technology from Google Patents. It seems to cover how such thumbnails are created (by taking screen shots) not the thumbnails themselves."