Google faces renewed U.S. antitrust scrutiny, this time over Android

By Diane Bartz WASHINGTON (Reuters) - The U.S. Federal Trade Commission has opened a preliminary investigation into whether Google Inc uses its Android operating system to dominate competitors as more consumers go mobile, two sources familiar with the matter said on Friday. The Android mobile platform is a key element in Google's strategy to maintain revenue from online advertising as people switch from Web browser searches to smartphone apps. The FTC had investigated Google for allegedly breaki