(http://readwrite.com/files/fields/Twitter_signin.jpg)
Twitter's long-anticipated initial public offering (http://www.sec.gov/Archives/edgar/data/1418091/000119312513390321/d564001ds1.htm) went public on the SEC's Edgar site. The company hopes to raise $1 billion through stock sales and plans to trade under the symbol "TWTR."
Source: Twitter's IPO Filing Makes Its Debut (http://readwrite.com/2013/10/03/twitter-ipo-filing)