I love Instagram. I just joined over the summer... because we didn't get smart phones until then! But I think Instagram is my new favorite form of social media and probably my favorite thing about having a smart phone.
I always enjoy the style of The Sartorialist's subjects... so varied and interesting. And it's always fun to read his commentary/points of debate regarding fashion, photography and culture around the world.
Rhinegeist is a brewery in Cincinnati, and I recently started following them. Their space in the Over-the-Rhine neighborhood is so cool, and I love keeping up with what's new with them through Instagram (so I can try all the new brews every time I visit my parents).