Just looking for like minded people and there are lots of people out there!
Essentially somewhere to get a look at some profiles and follow what you like etc.
A network if you will.
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Either jump in chat here or go to a photo sharing site such as one of the ones that jrista mentioned. There are very, very many options out there. Photo sharing sites like flickr and 500px probably are the easiest kind of thing if you are looking to find photographers whose style you like.
Flickr is a pretty good place to start. You can browse peoples photostreams and find people to follow via. the Explore homepage to start, then start adding your favourite photographers as contacts. You then see them on your own home screen next time you log in.
Google+ seems to be the most active social network for photographers to hang out with each other. It treats the photos pretty well visually, but the communities are also quite good for building discussion around topics rather than just dropping images on each other. The community I founded, Bird Photography (https://plus.google.com/u/0/communities/110212420118174844279) has just passed 2500 members and I think it has a nice mix of sharing imagery with each other and discussion, critique, gear talk, etc.
To me, it's not really a social network unless folks are actually talking and sharing knowledge. Right now, the best place to find that for photographers is G+.
To specifically address the Twitter part of the question, it's unlikely there are such services and if there are don't expect them to stick around as it's against the Twitter API terms to export content to other services that includes follows.