Flash Action Script making interface and core development, running by website, client don't need to download it. Client can call modem from his mobile to see if his house is worth more to sell for more gold coins.

    AJAX+JSP+Oracle achieve interactive, page refresh fast, efficient implementation. Put advertizement on QQ and sina and tell all our members and remax. Pay on website for gold coins. 1 gold coin equal 10RMB. ( Need 40 gold to buy 1 house worth 400,000. Maybe 2 gold coins to paint outside. 1 gold to advertize on front page. 1 gold coin to put furniture inside,ect.)