SharePoint Dragons

The MS Exchange Web Services API allows clients to communicate with Exchange Server: http://msdn.microsoft.com/en-us/library/dd633709(v=EXCHG.80).aspx . The following blog post provides a nice example where SharePoint users get to see how many unread messages they have: http://sw1ma.wordpress.com/2011/11/21/exchange-web-services-ews-managed-api-applications/ . A great way to extend capabilities beyond the ones provided by Outlook Web Access (OWA).