An idea for new startup:
to create the search engine which will work via voice. If somebody need find some info, you call by phone to service number (or send/upload recorded voice to specified site/url) and say what do you want (“I want to find the information about current Microsoft shares”) and in result, the engine will return (read as voice too!) the result(s).
Of course, not easy task for voice recognition and voice generation (a few templates a-la women, men etc). But I sure this is perspective way.