I know a lot of people will use these:
Microsoft Word 2010: Interactive menu to ribbon guide
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=0BF2A197-6336-4D51-9EEB-9D460CCAAFF3
Microsoft PowerPoint 2010: Interactive menu to ribbon guide
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=8E9097DB-9E2A-4228-832C-D2E7ECE4B5F6
Microsoft Excel 2010: Interactive menu to ribbon guide
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=2D7C735D-EEFE-4199-AFA4-A7A174DC6C55
Outlook 2010: Interactive menu to ribbon guide
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=AB019240-50DC-4748-8E25-00C8E8A63969
Access 2010: Interactive menu to ribbon guide
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9eb06022-ee3f-410b-a9f0-c61ba4dd18b3
Microsoft Visio 2010: Interactive menu to ribbon guide
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=7C652884-4AC7-41AF-B9C7-062A768BF69A
