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.

number of former Sun Microsystems employees who worked on Drizzle, an offshoot of the MySQL open-source database, have ended up at cloud infrastructure provider Rackspace, where they will continue their efforts, developer Jay Pipes wrote in a blog post Monday.

Sun's chief open source officer, Simon Phipps, has left the company following its acquisition by Oracle, the executive announced in his blog Tuesday.

"Today is my last day of employment at Sun (well, it became Oracle on March 1st in the UK but you know what I mean)," Phipps wrote. "I am a few months short of my 10th anniversary there (I joined at JavaOne in 2000) and my 5th anniversary as Chief Open Source Officer."

Sentilla has released an update to its data center energy management tool, which lets IT and facilities staff track the energy usage of servers and other equipment. The latest version is a software-only product that adds a chargeback capability, allowing companies to bill individual business units for the energy they use.

This just in from VMware: "Fling is defined as 'a brief casual relationship.'"

That text actually appears on a site VMware created to share internal engineering projects -- software code that is interesting but not yet ready for VMware's flagship virtualization products.