Derivations of their work may be commercially valuable but to my knowledge CERN projects do not directly generate revenue.

The WWW was not a CERN research project, it was a hypertext system (far from the first one) developed by a couple of technicians working at CERN's office of documentation to facilitate the sharing of documents across its multi-OS, multi-protocol computing environment (at the time IBM VMS, DEC VAX, Apple Macs, PCs, and the NeXTstations used to develop the first WWW client).

It took off because it was free, open source and easily portable by design, but frankly, pretty much the same thing could have, and doubtless would have, emerged from many other large organizations with similar requirements (quite possibly an intelligence service like the CIA - let's not forget where Tor came from), even without a dime being spent on particle physics.

As for direct commercial value, CERN made it freely available to all, as it must. The closest it got to making some money off it was an Apple program to donate computers to the office of documentation.

And don't forget all the engineering work that goes into the magnets and data analysis tools. The internet falls into this broad category of components necessary for the pursuit of science that aren't the direct objects of research.