Loading jQuery inside Google APIs

Interesting snippet found during a full tour inside Google Code:

/*
*  How to load jQuery and then use the Search API with it.
*/

google.load("jquery", "1");

// on page load complete, fire off a jQuery json-p query
// against Google web search
function OnLoad(){
  var url = "http://ajax.googleapis.com/ajax/services/search/web?q=google&v=1.0&callback=?";
  $.getJSON(url, function (data) {
    if (data.responseData.results &&
        data.responseData.results.length > 0) {
      var results = data.responseData.results;
      var content = document.getElementById('content');
      content.innerHTML = '';
      for (var i=0; i < results.length; i++) {
        // Display each result however you wish
        content.innerHTML += results[i].titleNoFormatting + "<br/>";
      }
    }
  });
}

google.setOnLoadCallback(OnLoad);​

This is a feature with an enormous potential: if you're able to load an external library, it means that you're actually extending the functionality that your API offers, allowing further extensions and routines. Notice how the entire jQuery wrapper has been included by the load() method. By doing so, the resulting set of routines now include both your native API and jQuery. Simple, elegant and powerful.