Yes, Yahoo is still acquiring companies. This time it's IQ Engines, an image search company, as first reported by AFP.
IQ Engines does indeed have a message about the acquisition posted on its homepage:
We are thrilled to announce that IQ Engines is joining the Flickr team at Yahoo!. As longtime Flickr fans and fellow photography enthusiasts, we look forward to working on improving photo organization and search for the community.
At IQ Engines, our dream has been to transform the way people search and browse their photos by helping to process them intelligently. We are excited to take things to a global level with one of the most widely used photo services in the world.
The company will no longer be registering new users. Existing customers will have 30 days to use its API.
Terms of the acquisition were not disclosed.