Walking Around With a Camera
This is a shared Photo Stream from iCloud. I can easily upload pictures here from my iPhone or iPad, and, for me, replaces much of the utility of Instagram and Facebook pictures.
Nice Marmot at SmugMug
I still have an account at Flickr, but I'm disinclined to use it very much since it's gone "free." I signed up for SmugMug, though I have some reservations about their business model as well. But, for the time being, it appears to be more transparent than Flickr.
I'll use SmugMug for more thematically related gallery type pages.