Flickr/Daniel GiesHigh tech hubs are dominating the US economy, according to new rankings of America's best performing cities by the Milken Institute.
A whopping 8 out of the top 15 best performing cities are local tech hubs - including the top 6.
Most of the rest are beneficiaries of the oil shale boom.
Milken's rankings are based on data from both long- and short-term growth in jobs, wages, salaries, and technological output.