Harvey Mudd College maintains an LDAP server which provides directory information for indivduals part of the HMC community.

A web interface is available to browse and search the directory (secure access is available via https).

If you are trying to look up student contact information, you will need to either use the secure access option (if browsing from within the HMC network) or authenticate to the system with your own username and password. Otherwise, no student results will be available.