So you wanna create site like facebook or twitter or youtube or soundcloud?. only solution is wordpress.Wordpress is most used and easy CMS out there. I am using it from just 2 years. and I am kinda pro in it. That’s a beauty of wordpress easy to understand. wordpress is made up of php and soon will be powered by javascript. so future is very bright.
wordpress has thousands of free themes underhood to customize your site without editing single line of code. plus thousands of premium wordpress themes are available. and that’s not it. you can extend it functionality by plugins. As like wordpress themes thousands of plugin also available in wordpress plugin directory. same goes for premium plugins.
on of the best thing about wordpress is it has most active community in the world. well you can search for wordpress help or wordpress forum or wordpress support and you came to know that. so start using wordpress now.