About a year ago Instagram began posting tips from some of their most famous photographers in their "How I Shoot" series. These tips provide users with insight on how some of the most creative users on Instagram shoot their photos and videos. Even if you're not a fan of Instagram these tips are invaluable for anyone shooting photo or video using a smartphone. Most of the posts are split into the following categories
Hardware - the phone preferred by the shooter
Vantage Point - how the shot is framed
Shooting - how the photo is shot (tripod, lighting, etc)
Editing - the software used to edit the photo to obtain the final result.
Instagram does a nice job of choosing photographers that shoot their photo on Android, iOS and Windows Phone. Each post is short, succinct and well worth the read.