Sandboxed solutions overview (SharePoint Server 2010)

Few very good Microsoft links on Sandboxed Solution

• Use and benefits of sandboxed solutions
• Understanding sandboxed solutions
• Deploying sandboxed solutions
• Understanding the sandboxed solutions service
• Understanding quotas and resource points
• Administering sandboxed solutions

Ref: http://technet.microsoft.com/en-us/library/ee721992%28v=office.14%29.aspx