Imagine a 9 to 5 job where you don't have to sit at a desk all day.

Google employees are paid to play beach volleyball, go bowling or scale a climbing wall; activities that take place at the search engine's main campus in California.

At LinkedIn, employees can play foosball or ping-pong when they tire of answering emails. At Zynga, arcade games grace the hallways. 

Now, other companies appear to be taking a page out of the dot.com playbook. More companies (though not enough if you ask the 'play' experts) are encouraging fun in their workplaces.

"I think there are some enlightened companies that are beginning to get this, especially companies in research and development and design," said Dr. Stuart Brown, founder of the National Institute for Play.

Brown offers play consulting for tech and non-tech companies alike, including Whole Foods. The reason: Not only does having a playful atmosphere attract young talent, but experts say play at work can boost creativity and productivity in people of all ages.