If you're wondering how to get retweeted, this infographic by Quick Sprout is extremely helpful. With over 340 million tweets going out a day, it is easy to be drowned out. This Quick Sprout guide points out that "retweeting isn't just about good content, there's actually a science behind it."
This clear and concise graphic covers everything from Twitter basics like tweet etiquette to more detailed analyses of the optimal time to posts tweets and how long they should be. Quick Sprout also highlights key words that garner the most attention, like "free," "please," and "follow." Including hashtags of trending topics and directly asking for retweets is also effective; if you ask, there is a 51% chance you shall receive.