Check out this short slideshow on the Mortgage Interest Deduction: The Short Version of What Every REALTOR® Needs to Know about Housing Tax Incentives.
There are a number of SlideShares available that may be of interest to you, such as:
Overview of Recent National Association of REALTORS® Research Reports
Challenges & Opportunities in Housing and Homeownership
The Current Status and Outlook for the Housing Market Recovery and Mortgage Finance