Welcome to WebmasterWorld Guest from 18.104.22.168
Wikipedia... sure enough it has a search box under the result, but I see no SiteLinks
Interesting. I don't ever remember navigating to the Wikipedia home page by search, so I don't know whether the overall home page ever had Sitelinks. The multi-language home page nav isn't one I'd have thought would be Sitelink-friendly.
Search for [wikipedia english]. Google displays both Sitelinks related to the "Main Page" (in English) and a search box.
-Edit- I finally got to see it on a specific search I did. It certainly is limited to a few domains (e.g. Microsoft). It's a big mystery to me how and why sitelinks appeared for some domains in the first place, and now this search box has appeared.
Thanks for the info.
My first reaction to change is to wonder what the motive is and a first thought was (oh no.. we're gonna start seeing this search button show up all over the place).. and then they'll start marketing it as an "add-on" to their Adwords (i.e. another few $$ and we'll embed a site search button for you).
Could it be a technique to hold on to the G searcher longer, and maybe have one more chance at showing adwords?
So, the question I guess is how does this embedding of a search box in results evolve? Is this just to improve the search experience? Does it tie into (or relate to) anything else such as custom search or adwords?