1. A method, comprising: presenting a plurality of first search results received from a first search engine, the first search results satisfying a search query directed to the first search engine, the first search results being presented in an order; and presenting a second search result inserted at a position between two otherwise adjacent first search results in the order, the second search result being received from a second search engine in response to the search query, the first search engine searching a first corpus of first resources, the second search engine searching a second corpus of second resources, the first search engine and the second search engines being distinct from each other.