Twitter keeps rolling out the good ideas. First there was Periscope (RIP Meerkat) and now, in what feels like a long-time-coming feature, Twitter finally allows users to retweet while adding comments. Previously, users had to do this manually AND faced a character limit imposed by the length of the tweet they were retweeting. And TweetHeads are going crazy tweeting and retweeting the news…how meta. Click to read more.