So get ready, Twitter users: you are going to see more ads in your message stream, especially if you live overseas. You may also see Twitter become more like a flash-sale site, with offers to buy products appearing in your message stream along with a way to buy them with a quick click or tweet. In documents filed on Thursday to inform investors ahead of its initial public offering of stock, Twitter noted that it has been greatly expanding its inventory of advertising slots, especially for promoted tweets, which are sponsored messages that use the same format as the 140-character postings, or tweets, that are the core of the service.
Read the whole story at nytimes.com