I have developed site www.AhmedabadSale.com. This site was developed by two people and the application server is Jboss. It uses EJB 2.0 specs and xdoclet and ant was used to develop this project.
www.AhmedabadSale.com is the first such website in Gujarat, India where you can place Advertisement for Real Estate Properties, Cars and Two Wheeler automobiles. It has lowest advertising cost in World. The site has all the features that you have in big sites such as eBay.com.
My site is a testimonial that JBOss can be use to develop enterprise level software with low investment. Thanks JBoss.