Update, Nov. 25, 10:34 a.m. ET: Internet users will increase to 3 billion by the end of 2014, according to a new report from the United Nations International Telecommunication Union. The 4.3 billion people without online access live in developing countries, the report notes, so there are "important digital divides" that need to be addressed, despite the surge. The Internet is about to get a little more crowded. According to new data from market research firm eMarketer, the we