Twitter is the new RSS feed (only normal people actually use it). It's a cliched line—and one that can be applied to Facebook as well as Twitter—but the San Francisco-based social network took things a step further on Wednesday (June 13) by rolling out a new feature which allows users to check out some of the content behind a tweeted link without being pulled out of Twitter. Now when someone tweets with a link to a BuzzFeed article, for example, users of Twitter’s desktop and mobile sites can click on a “View summary” link affixed to that tweet to...