Microsoft must be patting itself on the back these days as its new search engine Bing continues to make slight gains in search penetration in the U.S., MarketingVox reports, citing a new study from comScore.

Bing gained three percentage points and climbed to a 16.7 percent share during the first week of its launch and looks to be keeping that pace, according to the data.

"It appears that Microsoft Bing has continued to generate interest from the market for the second consecutive week," said Mike Hurt, SVP at comScore. "These early data reflect a continued positive market reaction to Bing in the initial stages of its launch."