Looking for a quick summary of the Winter 12 Release of salesforce.com’s Sales Cloud, Service Cloud, and Custom Cloud?  Here ya go:
http://www.slideshare.net/crmevangelist/salesforce-crm-winter-12-release-review-oct-19-2011

Sales Cloud Enhancements

  • Social Contacts
  • Collaborative Forecasts (newly provisioned instances only)
  • Salesforce Analytics Enhancements
  • Reports & Dashboards Quick Find
  • Report Type Quick Find
  • User Based Reports
  • Dynamic Dashboard Filters
  • Salesforce for Outlook Enhancements
  • Support for Outlook 2010 64-bit
  • Salesforce for Outlook Accelerators

Service Cloud Enhancements

  • Service Contact Center Enhancements
  • Pinned Lists
  • Salesforce Knowledge Enhancements
  • Import Articles and Translations
  • Rich Text Editor
  • Channel Display in Toolbar

Custom Cloud

  • Language Settings
  • Search Enhancements
  • Setup Enhancements
  • Administration Enhancements
  • Permission Sets
  • Sharing Enhancements
  • Visual Workflow (BETA)
  • Schema Builder (BETA)
  • APEX Enhancements
  • Packaging Enhancements