why when i try use load() with internet URL like google.com it's result nothing

ex:
$("#result").load("http://something.com");

but it work's when code like this
ex:
$("#result").load("http://localhost/application");

and when i try using load from internet using getJSON() on flickr.com it's work

ex:

$.getJSON("http://api.flickr.com/services/feeds/photos_public.gne?tags=cat&tagmode=any&format=json&jsoncallback=?",
 function(data){
 $.each(data.items, function(i,item){
 $("<img/>").attr("src", item.media.m).appendTo("#images");
 if ( i == 3 ) return false;
        });
});


help me please