resources for learning about web development/programming

[almostbusto]

So I know basic HTML, and thats about it(I do have a basic understanding of C++, not that that matters much).

lets say i ultimately want to know how to build a site not unlike a bare-bones version of facebook, myspace, 2+2forums, youtube, livejournal etc.

basically i am thinking about making a site where individuals are going to need to be able to create accounts for my site and then be able to basically create a blog/upload media.

so with that goal in mind, what are some books and sites that will help teach me what i need to know to get that done?