tedster - 2:40 pm on Oct 28, 2012 (gmt 0)
Why don't Bing/Yahoo, or any other SE, take up the challenge?
As I see it, the answer has two parts:
1. The infrastructure challenge is huge and Google has a big lead technically, both in hardware and software... even real estate.
Even with all their resources, Bing still has an active index that is a lot smaller than Google's. The differences and engineering challenges are not just the kind you can "throw money at."
2. The huge marketing challenge. Let's face it, Google has grabbed top-of-mind for search and even become a generic word for "internet search." Once any brand builds that much power with the public, the challenge is also very big. When is the last time you asked for an "adhesive bandage" instead of a "Band-Aid"?