Yahoo announced that they now include Yahoo Quick Links for Wikipedia results. What that means is that when you do a search at Yahoo and a Wikipedia result is found in the search results page, it will add "Quick Links" to "deeper" pages or anchors within the Wikipedia. For example, conduct a search on coffee and then find the result for en.wikipedia.org/wiki/Coffee (I see it at #5). Notice the quick links that have links to additional Wikipedia content, normally anchored down to anchors on the Wikipedia page on coffee.
I personally find this to be much more useful then how Google handles the Wikipedia results. Google places Wikipedia results in the One Box section (top of the page). But Yahoo just adds "deeper" links to the Wikipedia result, not by bringing it above the normal SERPs, but by adding a non-intrusive, "Quick Links" line.
Want to comment or discuss? Visit our SEW Forum thread, Yahoo Makes Real Use of Wiki.