The data shows that Bing recorded a 12.1 per cent share of search results over the working week of 8 to 12 June, and a 16.7 per cent daily search penetration level.
The numbers are up from an 11.3 per cent search result share during the previous week, and a 9.1 per cent share in the week prior to Bing's full release.
"It appears that Bing has continued to generate interest for the second consecutive week," said comScore senior vice president Mike Hurt. "This early data reflects a continued positive market reaction to Bing in the initial stages of its launch."
Bing's early success will be welcome news for Microsoft. The company has been hoping to raise its search presence to cash in on the lucrative search advertising market currently dominated by Google.
The company has made in-house projects such as Bing the centrepiece of its search strategy ever since a deal to acquire Yahoo fell through last summer.
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