Develop a meeting and activity website

I would like to develop a website where members of that site can post activities features: admin environment - in which i can post activities, advertisements etc. - add and delete members - add and delete categories: such as charity, etc. Member environment: - members need to subscribe an pay to be member - posting activities which are divided in different categories: such as: cultural, active sportive, food and drinks, party and nightlife, body and mind, traveling, - members can search activities on: date, location, activity category, keyword etc. - members can sent other members emails, invitations, - have their own home page - members have their own inbox - members have their own contact persons - members have their own profile - members can update foto's - members can post their own activities - members have their own settings log in codes etc. an example of the website is : [login to view URL] I have inlogcodes so you can look around.