You can find me @reneritchie most of the time. That's because the social network I use most is Twitter. I use it on my iPhone on the go, on my Mac while I'm working, and on my iPad while I'm reading or browsing. I use it to follow a few people I know and a lot of people in my industry. I seldom look at RSS anymore. To find out what's going on, I use Twitter. To keep in touch with real-life family and friends, and a few other people in the industry who prefer it, I use Facebook on the iPhone or the web. I use Instagram as well — also @reneritchie — from my iPhone, and sometimes share to Twitter and Facebook from there. And... that's about it. Only not really. Let me explain...
I do use Facebook but I don't put a lot of personal information there. I don't store a lot of photos, I don't check in, and don't do anything much at all but share the occasional story, and like and comment on the occasional post or link. That's more than I do on LinkedIn though. Mostly because I can't find anything else to do on LinkedIn. Likewise Pinterest.
Google+ I use because Google's bundled Hangouts there and that's our office video conferencing tool and what we use for our podcasts. Otherwise, I share the occasional story there too, and the occasional +1 or comment, and I keep up with my Google- and Android-invested friends. Like LinkedIn, however, I'm hard pressed to find anything else much to do there. And... that's about it. Seriously this time. Kinda.
Everything else has fallen by the wayside. However, I'm curious how you use social? Which networks are you on the most, how do you access them, and what do you use them for? Let me know your vote up top — just pick the ones you use a lot! — and give me the details in the comments below!
Note: I'm only including social networks with some public component in this, so no Snapchat or WhatsApp or the like.