What do you prefer where do you interested to post your business ads,classified ads ? sites with registration or without registration? my opinion is sites with registration are best because data will be genuine and endusers search for accurate data ,coz of no or less spam,saves time of end users and hence target audience for clients(who post ads) , clients and endusers (target audiance) are happy here. Sites without registration clients (who wants to post spam ads or no time for registration prefer this) and hence there will be bulk data,less genuine,spam,duplicate ads...it wastes the time of end users so they will not prefer to trade/search, and hence less target audience for clients, only adposters are happy here not target audience please share your opinions