Links to some very useful sitesMactopia: Homepage of Microsoft Office:mac products.
OfficeOne: The Windows edition of this site. It has lots of products that extend Microsoft Office applications on Windows. A good resource for VBA code snippets as well.
Microsoft Support Knowledge Base: Search for articles from Microsoft's Product Knowledge Base.
The PowerPoint FAQ: The most comprehensive PowerPoint FAQ. It is maintained by Microsoft MVP for Microsoft Office PowerPoint, Steve Rindsberg.
Indezine - A PowerPoint E-zine: An Online PowerPoint Magazine authored by Geetesh Bajaj.
PowerPoint:mac MVP Jim Gordon