MolviZ.Org News Flash:
Hemoglobin Structure is now available in Jmol (instead of MDL Chime).
The content is very nearly identical.

Hemoglobin Structure in Jmol

This new Jmol version is recommended over the old MDL Chime version because:

For those who prefer, Hemoglobin Structure in Chime remains available. The old Chime version will be phased out when demand ceases.