Real World References
"Jitters" are a term to describe the rush or buzz a person experiences from caffeine, such as that one gets from espresso.
Jitterati is itself a term satirizing the "digerati" and their dependence on caffeine. Also 'literati' - a snide reference to the literary/intellectual 'elite'. There's probably an Italianate etymology to all of this but I'm too idle to look it up. Perhaps this makes Jitterati a neologism for the cliche'd caffeine-fueled-web-genius community.
The popular coffee chain Starbucks was founded in Seattle, located in America's northwest.