Yahoo's attempts to strengthen its mobile offerings and recreate its pages have led to a 70% increase in mobile email usage and a 50% increase in Flickr photo uploads from mobile platforms. While Yahoo remains in close ties with Apple, it may be expected to expand to Android and Windows in the not-too-distant future. We are positive about Yahoo, as its search business continues to show signs of improvement, even in the face of tough competition from Facebook ( FB ), Google ( GOOG ) and Microsoft ( MSFT ). Currently, Yahoo has a huge task at hand, which is to bring back its users and make them spend more time on its properties. If successful, Yahoo may reclaim some of its lost market share going forward. This would be crucial in bringing back advertisers as well. In the first quarter of fiscal 2013, Yahoo generated revenues of $1.14 billion, which were down 15.3% sequentially and 6.6% year over year. Traffic acquisition cost ( TAC ) was down 42.3% sequentially and 49.9% year over year.