The most complete reference is the IPCC 2007 Mitigation Report which is a compendium of mitigation research. Here are a few other resources for you to check out. There are many more.

From the UN Gateway on Climate Change,

From the Environmental Protection Agency:

 What You Can Do

• At Home
• On the Road
• At the Office
• At School
• State and Local Governments
• Businesses
• Waste
• Agriculture and Forest Land

And from the Union of Concerned Scientists: 

What You Can Do about Global Warming:

You can get involved in these ways:

• Take Personal Action
• Encourage Community Action
• Influence U.S. Action and Policy

Ten Personal Solutions to Global Warming:

The car you drive: compare fuel efficiencies 

Choose clean power. •http://www.green-e.org/    

Look for Energy Star.   

Unplug that extra refrigerator or freezer if not in use.   

Get a home energy audit.  

Light bulbs matter.  

Think before you drive.   

Buy good wood from a well-managed forest.   

Plant a tree.  

Let policymakers know you are concerned about global warming.  

Global Warming Solutions:

• Big Picture Solutions
• Energy Solutions
  
• Vehicle Solutions
  
• Forest Solutions