"Facebook" is for kids in college. It basically allows you to view everyones profile in your university, so its a good way to meet people or leave messages. I'm not saying I use it a lot, but its definitely not the "fagbook" you think it is. I'm guessing your not in college?
It also seems that very few on that site have any basic web layout skills. I say this because nearly all the pages I have seen have dark backgrounds with dark text making it nearly impossible to read. The pages are also jam packed with various crap