Hassan which site tends to be updated more. Google robot likes sites that are being updated constantly and are dynamic in nature. Think of the google robot as a friend that likes to know anything and everything about what is going on at any given moment. Even if it is a small blog or update section that constantly changes google will come back for more. Hassan we have a site in development currently www.trafficrankers.com you want to run your sites through our script http://www.trafficrankers.com/?navigation=1 to see how the other search engines are looking at your site. Optimizing your site for google is good but that is only half the battle. The site is being redesigned check it out and see if that can help.