Search for 'let it snow,' and watch screen frost over
                                
                                
                                    (Newser) -
                                    Oh, those wacky billionaires at Google. On the heels of the  "do a barrel roll"  trick, which caused your whole browser to do a 360-degree spin, the search king has released a more seasonal Easter egg: snow. Type the three magic words "let it snow" into Google, and...