Chris Sacca's essay on what Twitter can become is worth a read if you're interested in the future of the company. The piece contains several interesting ideas for enhancements to Twitter's curation, discovery, and timeline design – this bit on Nuzzel in particular:
A third way to organize content from Twitter is to highlighting what the Tweets are linking to. If you’ve used Nuzzel (disclosure: one of our portfolio companies) you know exactly what I mean and how simple yet magical that experience can be. If you haven’t used it, try it. Nuzzel makes Twitter better.
Want to know what are the most popular articles linked to on Twitter? That should be a channel. What are the most popular sites linked among the people we follow or people that our friends follow? Great channel. Which books are people Tweeting about? Channel. Which videos are garnering the most attention? Channel. Any particular .gifs blowing up? Channel.
I use Nuzzel every day, and I love it. As I argued last year, I'm a fan of Twitter's experiments with the timeline on iOS, but I also believe they should experiment more and break free of old ideas about Twitter. I disagree with some of Sacca's proposals, but the entire piece is spot-on.