edwardvettori wrote:Well buddy i know that penny auctions are treat to play and have many advantages over normal shopping means but my craze for knowing the advantages of reverse auctions is increasing day by day!

I'm not too familiar with them either so I did a quick search. As defined in Wikipedia, a reverse auction is a type of auction in which the roles of buyers and sellers are reversed. In an ordinary auction (also known as a forward auction), buyers compete to obtain a good or service, and the price typically increases over time. In a reverse auction, sellers compete to obtain business, and prices typically decrease over time.
You might also find this helpful:
http://www.epiqtech.com/reverse_auctions.htmCheers!