Since starting the Refinery29 Instagram account a year ago, I have to admit that I've become completely obsessed. It's the first thing I look at on my phone when I wake up, and between posting to the R29 account and my own personal one, I find myself thinking about post-worthy images, a lot.But what's more exciting to me is the fact that I actually feel like Instagram has changed the way I see the world. I'm looking at the details now…in the gutters, on walls, in the sky, and especially at people's feet and nails. I follow a lot of people, so it was tough for me to narrow my favorites down to a list of just 10 — but somehow, I managed to edit things down to the very best of the best. After considering the frequency of posts, the uniqueness of each user's point of view, how they were shot (yes, I'm an iPhone-only purist!), and the overall radness of their photos, I came up with my list of the top people to follow on Instagram. So, fire up those iPhones, and click on through!