Google released its earnings for the 4th quarter of 2007, that missed Wall Street estimates, sending the stock tumbling after hours.

Google which went up $16 a share today, sank $46 points after earnings were released and now sits at $518.

Google is now well below its all-time high of $747 last November.

Google reported that its fourth quarter revenue came in at $4.83 billion, up 51% from a year ago. Excluding advertising traffic acquisition costs, the company reported revenue of $3.39 billion, below the $3.45 billion analysts had expected, according to Thomson Financial.

Google posted net income of $1.44 billion, or $3.79 a share, up 17% percent from a year ago. Profits, after backing out certain gains and charges, came in at $4.43 per share, narrowly missing Wall Street’s expectations of $4.44 a share.