The designers of both Mosaic and Netscape Navigator have pointed at GNN as their inspiration.

FORBES: Calliope's revenge

In the autumn of 1993, O'Reilly launched Global Network Navigator (GNN), an on-line magazine and Internet reference guide.

ECONOMIST: From the archive

O'Reilly had promised to distribute GNN for free, so an online magazine, with the first online advertising, was wrapped around the catalog.

FORBES: Calliope's revenge

Out of this book grew the Global Network Navigator (GNN), the first commercial site on the World Wide Web and arguably Tim O'Reilly's most important contribution to the technology community.

FORBES: Calliope's revenge