Big and small providers alike offer hosted or cloud-based collaboration and e-mail systems geared for businesses, with some obvious benefits.

While Google and Microsoft have each developed very different business models and attitudes toward consumers and the enterprise, both companies are preparing to clash when it comes to how the world's cloud computing infrastructure develops in the next 10 years. While Google and Microsoft might fight for dominance in the cloud, it's not clear which company will win or if a third company might succeed.