The WorldWide Telescope (WWT) is a Web 2.0 visualization software environment that enables your computer to function as a virtual telescope, bringing together imagery from the best ground and space-based telescopes in the world for a seamless exploration of the universe. WorldWide Telescope, created with Microsoft's high-performance Visual Experience Engine, enables seamless panning and zooming across the night sky blending terabytes of images, data, and stories from multiple sources over the Internet into a media-rich immersive experience.
WorldWide Telescope is a collaborative effort between Microsoft Research and a variety of academic and governmental agencies. Microsoft Research is making WorldWide Telescope available as a free resource to the astronomy and education community with the hope that it will inspire and empower people to explore and understand the universe as never before.

Raxco Software, the leader in disk defragmentation, now provides the power of enterprise defragmentation for desktop and laptop users with PerfectDisk. PerfectDisk's easy to use interface and powerful defrag engine were designed for users who do not require the capabilities of network defragmentation and advanced features for the enterprise. PerfectDisk is a software that helps you to defrag disks. If you want to optimize your computer to run faster and perform better so you can do more – whether work or surfing the Web – and don't run in a networked environment like many companies, then PerfectDisk is for you. Work and play faster - and smarter. PerfectDisk makes everything you do on your computer faster - so you can be more efficient at your work or play. PerfectDisk 2008’s patented SMARTPlacement™ optimization is paired with its exclusive single-pass defragmentation and Space Restoration Technology™ to maximize PC and laptop performance. All controlled and automated according to your unique requirements through AutoPilot Scheduling™ or StealthPatrol™ unattended background processing.