http://operawatch.com/news/2007/10/opera-and-google-renew-search-agreement-for-desktop-browser.html

"Good news for all of you Google fans. We renewed our search deal with Google for another 2 years.

Google is the default search engine in the browser’s integrated search (on the top right corner of the browser).

Here’s a little tidbit for you guys and gals: Opera was the first to include a search field inside of the browser. In addition, Opera was also the first browser company to have such a deal with Google."