Bingo! Microsoft’s Search Share Keeps Going Up

Nine months since relaunching its search engine, Bing’s market share continues to inch up. It’s now at 11.5 percent, up from 8 percent prior to its remake, according to the latest comScore (NSDQ: SCOR) figures (via Business Insider). We’ve made a point of checking in each quarter, rather than monthly, in order to avoid anamolies, and the trend has stayed remarkably the same.

Google’s market share share has held steady. Its share is now at 65.5 percent, compared to 65 percent in May 2009. Bing’s gains, meanwhile, are coming almost entirely at the expense of Yahoo (NSDQ: YHOO), which has seen its market share fall to 16.8 percent from 20.1 percent before Bing came to market. It’s a similar story in Great Britain, where my colleague Robert Andrews reported this morning that Yahoo’s market share has tanked.

That has to be raising some eyebrows in Redmond since the two companies’ search engine market shares will essentially be combined when their ad partnership goes into effect. Still, nine months of straight gains have to be some cause for celebration.