I still use Flickr occasionally (I don't really use anything more often than occasionally, even posting here!) and it's still pretty nice for sharing photos.
I think the closest to the good parts of Instagram (without the bad) is
Vero, but there really aren't many people on it yet. It does still have video and such, but it's chronological timeline focused. I've got an account there but haven't actually posted anything yet. I'll probably get around to it soon!
I like the concept of Glass, but I think they messed up with their monetization. If viewing was free and posting required a subscription, it would be a lot more successful. But I (and a few others I know) aren't going to sign up for a subscription without even seeing who else is on it, or what the quality is like! I would happily pay for a good platform, but I think they need to bootstrap it somehow if they want it to take off. The one person I know who did pay for it stopped pretty quickly because there just wasn't enough there to justify the price.