Google will launch on Tuesday evening Google Apps Marketplace, providing a venue for third-party, cloud-based applications to supplement Google's own online applications.

The program enables integrations with such applications as Google Gmail, Documents, Sites and Calendar. All told, the effort begins with 50 vendors participating, including Atlassian, NetSuite, Skytap and Zoho.

"Tonight, what we're doing is we're announcing a business-to-business marketplace for Google Apps users, where the idea is that we want to help users get more applications for Google Apps from third-party developers," said Chris Vander Mey, Google senior product manager, in an interview on Tuesday afternoon. Among the applications is a small business payroll system from Intuit, called Intuit Online Payroll, and Box.net's self-named content management system.

More: http://www.computerworld.com/s/article/9168598/