In a rare peek into Facebook's finances, Santa Clara County records show that the social networking giant spent at least $116 million buying business equipment like laptops, servers and furniture last year, an eye-popping spree that was nearly three times more than the previous year.

The tax data, compiled yearly by the Santa Clara County Assessor, provides a fascinating window into the relentless reordering of the tech hierarchy in Silicon Valley. Powerhouses like Facebook, Google (GOOG) and Apple (AAPL), benefiting from their expertise in "cloud" computing and the mobile Web, have a presence in the valley that now rivals and often surpasses longtime stalwarts like