Google announced a new mortgage shopping product in late November. Partly powered by Zillow, it’s an advertising tool for lenders and a product comparison tool for consumers. Zillow already has the products, interest rates, and reviews of nationwide lenders across its mortgage shopping system. It…

Imagine you’re one of the millions of Americans who have been locking in in record low interest rates on adjustable rate mortgages within the past few years. 4.0 percent on a 30 year mortgage is a good deal, but 2.25% on a 5 yr ARM,…