Any Web publisher with a pulse knows that the best way to goose page views is to create a slideshow. Turns out it works in search as well.

Yahoo's search market share has been on a decline for several months, but the company has been promising a rebound over the last several weeks. And according to ComScore data released to financial analysts Monday, it delivered in April, gaining 0.8 percentage points of share to end the month at 17.7 percent of the market.

But several analysts pointed out that there's a catch: Yahoo's search gains came almost entirely due to its decision to treat photo galleries in Yahoo News as search queries. At some point over the last month, Yahoo changed the way it presents images in Yahoo News so that when a user clicks on a photo or gallery, Yahoo generates a "search" by putting the title of the photo in the News Search query box and adding three "related searches" links below the picture.

More: http://news.cnet.com/8301-30684_3-20004697-265.html