When it comes to perks, few employers can match those that high-tech companies in Silicon Valley have to offer. Whether it's generous salaries, pet-friendly offices, or on-site services such as gyms and yoga classes, corporate juggernauts such as Google, Twitter and LinkedIn seem to have it all.
Behind all the perks and quirks, however, it's serious business. Google, for example is a global company with operations in more than 40 countries and with annual revenues of nearly $30 billion. So it's no wonder the company wants its staff to play as hard as they work.