So there has been a TON of talk lately within the photography community about social networks, photo sharing websites ect... Most of this is coming from the launch of Google+... I'm a member of most of these sites and I figured I'd weigh in here with my thoughts for anyone who's trying to decide what sites to join and are feeling overwhelmed...
This won't require much reading either
Facebook - Unbeatable in terms of potential exposure, important to someone like me who is looking to market work to those who AREN'T photographers.
Twitter - Extremely useful marketing tool, and a great source for the most up to date information on pretty much anything.
DeviantArt - First place I ever shared a photograph online and I will always continue posting here. I don't know of any other site where a photo of mine could get 30,000 favs. On most sites, 30,000 views is unthinkable. This is the biggest online art sharing site in the world. Fun place to be.
RedBubble - Good if you want to send people there to buy your work. For me it's useless and clunky and I got bored with it pretty much right away.
500px - The best site out there for sharing and viewing others photos hands down. The bar is set high over there, and the photographers who are using it are a testament to that. Someone finally got it right.
Google+ - Only been on there a few days but so far with the exception of "circles" it seems like a clunkier less intuitive version of Facebook. Photos do look good on there though. Don't think its going to be the Facebook/Twitter killer people are making it out to be. There are a million other photographers on there already so it's great if you like playing the "keep up with all the other photographers" game, but I've never really cared about that. It's still in beta and I haven't used it much so this could be a horribly misleading review! There have been a lot of rumors about googles terms of service being wrong, but in all honesty it's not much different than any other sites TOS.... with that said. I still think google is going to become an evil self aware corporation that will become our leader in just a few short years, so I HEAVILY watermarked all of my photos I posted on there.
Thank you for reading my incredibly in depth reviews of some of the more popular social networking/art sharing sites.