Medias? Or is 'media', like 'stadia', derived from 'medium' and already plural? Hmm.
Prior to popping into existence on G+ and 500px yesterday, I had only really been posting my photos to Instagram. I have a Flickr account as well, but I tend only to upload large batches of photos there, as something of an afterthought. Now, I have two new bubbles to explore, and I'm realising, somewhat to my surprise, that I don't want to just duplicate my Instagram uploads on G+ and 500px. On Instagram, I upload in sets of three, to maintain a little symmetry in my feed; there's no need for that on G+ or 500px, though, as their feeds aren't presented in Instagram's grid of 3. Indeed, on 500px, there is a cap of 20 uploads a week, meaning I wouldn't be able to mirror my often 21-a-week Instagram uploads anyway!