Mr. Icahn's blog, The Icahn Report, has not been updated since April 16, 2009.
From PE Hub:
Billionaire hedge fund manager Carl Icahn said he plans to return all of his clients’ money, becoming the latest in a string of investors who no longer want to manage money for outsiders.A quick check shows that both Hugo Chavez and Fidel Castro are still blogging.
“After careful consideration of all relevant factors, we have determined to return all fee-paying capital to investors,” the 75-year-old stock picker wrote in an investor letter. A copy of the letter was released in a regulatory filing Tuesday morning....MORE
They are both "dot org" which I suppose is appropriate, while Mr I's site is/was a dot com.