The Digital Web is a sort of extension of the Internet, but unlike the Internet appears to have no basis in hardware: it is a network without servers or cables. Most remarkably, anyone (even mundane humans) with the right equipment can interface with it. While holistic immersion is possible, only certain mages are capable of it. Entire digital realms exist within it, and it is considered by many the "new frontier" to be conquered. The Virtual Adepts currently have the best handle on this growing zone.
Ostensibly discovered in the 1950s CE, the Digital Web is actually the remnants of the Ahl-i-Batin's Web of Faith, a spiritual information network that collapsed during the Dark Ages.