As Ryan Ballengee at WaggleRoom.com reports, Tiger Woods and Elin Nordegren have officially announced the dissolution of their marriage. The decision was first publicly announced via a statement on Tiger Woods' website:

McGuireWoods LLP, counsel for Elin Nordegren and Sasser, Cestero and Sasser P.A., counsel for Tiger Woods, make the following announcement:
Elin Nordegren and Tiger Woods confirmed today that they have divorced. Judgment was entered today in Bay County (Florida) Circuit Court dissolving the marriage. The Judgment provides for shared parenting of their two children.
Ms. Nordegren and Mr. Woods issued this joint statement:

We are sad that our marriage is over and we wish each other the very best for the future. While we are no longer married, we are the parents of two wonderful children and their happiness has been, and will always be, of paramount importance to both of us. Once we came to the decision that our marriage was at an end, the primary focus
of our amicable discussions has been to ensure their future well-being. The weeks and months ahead will not be easy for them as we adjust to a new family situation, which is why our privacy must be a principal concern.