HomeRadar.com

Searchable Comparable Sales History (Note: "sq ft" could be gross & not heated")  

Domania.com

Basic Comparable Sales History for Neighborhoods ("Home Price Check")

HomeGain.com

Property Valuations as well as a Searchable Database of Properties For Sale

HouseValues.com

Property Valuations as well as a few recommended real estate books

Mortgage Calculators On-Line

Calculate Mortgage Payments, Interest Deductions, Refinancing etc.

First Bank On-Line Calculators

Home Financing, Investment & Retirement Calculators On-Line