Yahoo shares plunged more than 10% after Chief Executive Terry Semel warned that online advertising growth appears to be slowing in some categories. Mr. Semel, speaking at an analysts’ conference, said the company has seen growth weaken in ads from automotive and financial services companies, and said it’s too early to tell if the slowdown will spill over into other areas.
Update: Safa at Piper says this is “a buying opportunity.” I uploaded his report here.