I recently started using instagram, and am pretty damn impressed. (user brianbernard for anyone that cares). I’m certainly a dedicated word nerd and defender of written language, but being effectively planted into peoples’ lives is fascinating. You see their world through their lens with no written filter. A picture of a dog in china is just as relevant as a picture of a dog in the US. Writing 140 characters can’t accomplish that, and Facebook can’t either. Pinterest is similar, but decidedly hyper-feminine in demographic and design.
The only knock I have is the somewhat limited ability to share pictures from the app itself to the larger Internet. There’s no retweet, or share, or even link that you can access easily from within the app.