Langdon had never seen any evidence of the pendant, nor could he imagine how it could possibly reveal the Holy Grail, and yet Grail aficionados still discussed it ad nauseum on Internet bulletin boards and worldwide-web chat rooms.
There are no more uses of "Internet" in the book.
Show samples from other sources
When he dumped some girl named Zoe on Labor Day weekend she blasted a disrespectful description of his man-parts all over the Internet.
Laurie Halse Anderson -- The Impossible Knife of Memory
He falls in love with some other chick, but now there’s probably this YouTube video floating around on the Internet of him talking all sad about how his heart got broke.