<p>This photo shows the sign outside of Twitter headquarters in San Francisco, Monday, Nov. 4, 2013.(Photo: Jeff Chiu AP)Story HighlightsTwitter raised pricing range to $20 to $25 per shareCompany could end up raising $2 billionTwitter closer in business model to Yelp</p><p>If you want any evidence that Facebook's (ticker: FB) botched May 2012 initial public offering was a traumatic event, just look at the following headlines regarding the most anticipated IPO since the "Facebook fiasco", which I culled from today's Yahoo! Finance homepage:</p><p>Challenges abound for Twitter heading into the IPO (Associated Press)</p><p>Success of Twitter's Business Model Questioned Ahead of IPO (Breakout/Yahoo! Finance)</p><p><a href="http://www.usatoday.com/story/money/markets/2013/11/05/nothing-wrong-with-twitter-ipo/3442913/">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.cnbc.com/id/101153189">Twitter's ambitions: #ChangeWorld #MakeMoney</a> (CNBC.com)</p><p><a href="http://money.cnn.com/2013/11/05/investing/twitter-investors-ipo/">Main Street may avoid Twitter IPO. So?</a> (CNN)</p><p><a href="http://www.ibtimes.com/twitter-launch-thursday-hotly-anticipated-ipo-1456662">Twitter To Launch On Thursday, In Hotly Anticipated IPO</a> (International Business Times)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dFDC1iCWiQvfGbMfwTlkxxA095ViM&ned=us">188 additional articles.</a></p>