Those were forums. I dunno really, but i have ideas for the forum, also hosting modifications for games such as GTA SA etc... Forum + Modding site (i will pay someone who is in my class at college to make me a website) I am a big fan of GTA Series, might bass it on that, but also thinking of computer support too.
Seems like you need to really step-back and think about it before you go any further...and decide what you really want to do and how you want to do it. You clearly haven't put a lot of thought into this yet...before you go opening the doors of a forum I would suggest that you plan your strategy first. Being young you may not realize it yet...but I'm actually saving you a lot of later grief...the longer a forum sits empty the worse it looks to visitors...the best thing to do is to plan it out before you open those doors and have a supply of content ready to put in it.