The biggest threat to Google Search is --- greed. A certain amount of advertising is acceptable --- but Google has blown way past that point. It's now hard to

The biggest threat to Google Search is --- greed. A certain amount of advertising is acceptable --- but Google has blown way past that point. It's now hard to find the real results you came looking for due to all the ads. Greed --- and the lack of real competition, has made them complacent and vulnerable.