A Web Portal differentiates from a normal website in its usability. Web Portals primarily focus on online community building and get users to register and use the services on regular basis. The repeat factor of business is very important while designing and developing a portal for a client. Theme based portals (e.g. job portals, auction portals, travel portals, social networking sites) have become very successful as they create a niche and target specific users for that community.