Twitter’s “Value Proposition to Advertisers” looks like it’s squarely aimed at the world’s largest social network
Twitter had revenues of $317 million in 2012 and $269 million — 85% — came from advertising, which is almost the same as Facebook's revenue mix, 88% comes from ads.
The section of its S-1, "Our Value Proposition to Advertisers," doesn't mention Facebook once, but nearly everything that Twitter says makes it a distinctive ad-buy is also what makes it different from Facebook. It's a series of subtweets.
Twitter says that its basic advertising products, promoting tweets, accounts, and trends in users' timelines "provide advertisers with an opportunity to reach our users without disrupting or detracting from the user experience on our platform." The unstated premise: users can't stand Facebook's ads because they obviously get in the way of the basic Facebook experience.