Creating a social networking/ dating site with CI general advice

[eluser]phpserver[/eluser]
First of all its important you have a look at ocular user guide from here:http://code.google.com/p/ocular/

In the case of joomlaplaza,the page is broken into various sections like head,navigation,content(under content we have several sub sections like member showcase,latest news and so on).

This is the work of divs and the dynamic content is served by modules.Suppose joomlaplaza is being maintained by a number of developers.Its only logical for the leader to assign different people different modules to maintain and the alternative is assigning each developer his/her own controller.Modules like latest news,forums and stuff are put in the third_party folder.

The Latest News section can be processed by the latest news module or you could have a controller for it,but again the project is very huge.With this many sections to take care of ,you may end up with very many controllers.

I can never explain everything in a post,see the numerous topics on modules usage and templating solutions available.If you have anything more you wanna ask,you could pm me and i will be glad to help.