According to SANS ISC, Ethereal is now Wireshark.
Gerald Combs, the creator of the Ethereal® network protocol analyzer, has accepted a position with CACE Technologies. CACE is best known for the popular WinPcap packet capture library.
Along with the move comes a new name for the project: Wireshark.
This site (http://www.wireshark.org/) is the new home of the project.