twitter and facebook may operate two very different businesses, but as julie borsten tells us, they may have something in common, especially for their vision for the future. >> facebook has over a billion more active user than twitter, and twitter conversations are more public, while facebook is between friends, the two company stocks are both suffering from forecasted disappointing stocks at wall street. twitter not growing fast enough, facebook by slowing revenue growth in an upcoming jump in expenses. >> the critical question here is around expenses, the level of spending they will ramp up next year and we felt like that would have an impact on the price target. >> both companies also laid out a vision for extending their reach beyond their own social networks, providing the tools to developers so they can be the back bone of all varieties of mobile apps and provide avenues for them as well. >> for the next few years, our goal is to make facebook the platform to enable others to grow. >>> just last week, twitter jumped into the game, unveiling the game called fabric, to help develope