Provides help migrating to or from an Exchange Online mailbox or Exchange server, moving data, migration between versions of Exchange Online, moving mailboxes, as well as help migrating from Lotus Notes, Groupwise and other 3^rd party tools.

Help migrating to SharePoint Online from a SharePoint server installation, information about moving SharePoint servers, help moving SharePoint data during migration, migrating between versions of SharePoint Online, and tools to assist you with SharePoint migrations.

Exchange Server 2007 Partners for Migration Solutions
Migration from other systems to Exchange Server 2007
Migration From Lotus Notes
Microsoft SharePoint 2010 Partners