Over the past several months, I've seen this subject come up again and again: RSS is dying. Twitter is replacing it.
I don't believe it for one second. The stats for Macdrifter.com tell a very different story.1 My RSS subscribers (last I checked) was at least 50 times the number of people that read the pages directly. Retweets of articles and incoming links from Twitter are a small fraction of overall page views.
Twitter is great. I funnel a lot of stuff from Twitter into Instapaper and Pinboard. But Twitter is a flowing river. I am not on Twitter all day so I miss the clever banter and people complaining about Twitter.2 RSS is time-shifted. RSS is targeted and bounded by my subscriptions. Clever hacks like IFTTT can make Twitter more like RSS but it's a pale facsimile.
Twitter is not RSS. They are uniquely different and both are great for research in their own way. From what I can tell, both are becoming more common every day.