HouseMath 2.0 (EC2)     http://www.housemath.us/     tags: realestate Standard & Poor's - S&P/Case-Shiller® Home Price Indices     links to xls of their data     http://www2.standardandpoors.com/portal/site/sp/en/us/page.t...     tags: data shiller realestate Real estate photos worth more than a thousand words - (37sig...     http://www.37signals.com/svn/posts/356-real-estate-photos-wo...     tags: realestate John T. Reed Publishing Home Page     http://www.johntreed.com/     tags: realestate Los Angeles County Assessor's Office - Property Assessment I...     http://www.lacountyassessor.com/extranet/DataMaps/pais.aspx     tags: data realestate OFHEO -- Average Loan Size Files     http://www.ofheo.gov/hpimsadef.asp     tags: realestate data OFHEO -- House Price Index (HPI)     http://www.ofheo.gov/HPI.asp     tags: realestate ConsumerReports.org - Winning the real-estate game, national...     http://www.consumerreports.org/main/detailv4.jsp?WebLogicSes...     tags: realestate