Posted January 20, 2010 2:46 pm by with 4 comments

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Two out of three online measurement firms agree: Bing lost ground in December. Experian Hitwise and Nielsen saw Bing’s search share decrease from November, while comScore saw it grow.

comScore saw Bing grow 4% from 10.3% to 10.7% (and Yahoo, Ask & the rest lost some). Hitwise, however, reported that Bing saw a 4% decrease in December (0.42 percentage points, coming in at 8.92%), as did Yahoo (0.56 percentage points, now 14.83%) and Ask (0.11 percentage points, now 2.54%). Google, naturally, grew 1% (0.68 percentage points, 72.25%). Nielsen reported an 8% drop in Bing’s share (0.8 percentage points, 9.9%), while Yahoo saw a 6% drop (0.9 percentage points, 14.4%).

Comparing the data to May (the last month of Microsoft/Live search before Bing’s launch) yields somewhat different results. Nielsen shows that Bing gained 0.5 percentage points by December, while Hitwise shows they’ve gained 3.28 percentage points. comScore says they’re up by 2.7 percentage points over that period.

However, all the measurement firms agree that Google was up and Yahoo (and Ask) slightly down in December. If Bing’s success is coming at Yahoo’s expense, will this bode well for their deal?

We saw lots of early reports that Bing was growing its market share, but after six months, are the results as dramatic as you expected?


  • My question is which search engine can you trust? There seems to be so many different answers out there to the same question. Why is that?

  • I think its good that there’s some competition for the all mighty Google. I think their search service is cream of the crop but with Microsoft buying Yahoo, Bing could be a good contender which will prevent Google getting complacent

  • These are bogus metrics that have absolutely no relevance to what is actually happening in search.
    .-= Michael Martinez´s last blog ..Farewell, cruel social media life =-.

  • I’m a bit surprised. I thought with all the advertising I’ve seen and Bing being the “new kid on the block” that they would have done a little better in December, but not worse. That’s not a good sign. Looks like taking on King Google will be a hard, long slog. And I’ll have to admit, I still use google… if it ain’t broke, why fix it. 🙂