For photos Flickr is pretty good. I hate to sound like a naysayer, but the only thing that i don't really love about some of the social networking sites is the danger to younger teens...I mean there are some weirdos out there. At least I know I can report them online to a place like cybertipline. So even though I sound like a nagging mom or something, just remember to be careful of who you give personal information to!
By the way, I hear my space is really slow when you're loading things to your profile, etc. Is this true?
Not that I've noticed yet..