There wasn't exactly a rush to embrace the technology, mind you. The big leaps toward the mainstream came in 1993, when NCSA released the first widely popular web browser (Mosaic) and CERN helped adoption by making the web's software both free and open source. Berners-Lee's original approach to the web treated it more as a platform for academic collaboration than a revolution. Still, there's no denying that the events of 1991 got the ball rolling on a fundamental shift in communication.