> Microsoft threw billions at it with Bing and still never became more than an also-ran. The only place that seems to have a real chance is DuckDuckGo, and I'd be very interested to see how their story has played out up to this point.

That's an interesting perspective when you consider that:

1. Bing has at least 5x the market share of DuckDuckGo in the US (and even higher worldwide)

2. DuckDuckGo uses Bing as its main source of search results.