"If Facebook allowed users to differentiate between their professional and social relationships and control what parts of their profile are visible based on relationship type, it" could be the end of LinkedIn...
Announcing Vyew 2.0: Free Web Conferencing and Always-On Collaboration * 100% Browser-based - No downloads or installs * Shared viewing of: DOCs, PPTs, XLSs, JPGs, PDFs and more * Real-time Desktop Sharing and Screen Capturing * Tools to Whiteboard, Draw