A senior Microsoft executive on Friday criticized a new advertising deal between web search giants Google Inc. and Yahoo Inc., saying it would reduce competition in ad search and be bad for advertisers.

A senior Microsoft executive on Friday criticized a new advertising deal between web search giants Google Inc. and Yahoo Inc., saying it would reduce competition in ad search and be bad for advertisers.

A Microsoft executive on Friday sent workers an upbeat email outlining a vision of how the software giant expects to take over Yahoo and merge the companies' cultures and resources.

A Microsoft executive on Friday sent workers an upbeat email outlining a vision of how the software giant expects to take over Yahoo and merge the companies' cultures and resources.