In one case, a patient began to have paranoid thoughts and used an internet search engine to investigate suspicions about an ingredient on a chewing gum packet.I have some delusional correspondence from people who are worried about having been implanted with RFIDs or tracked by spammers. Link
Her searches led her to believe she had discovered a secret terrorist network, and was therefore being personally targeted by the authorities using phone taps and hidden cameras...
The authors also consider that a person's understanding of technology may be a limiting factor in their ability to incorporate it into a delusional system. People with a poor understanding for example, may be more likely to attribute seemingly supernatural abilities to technology.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.