Is there a specific implementation of LDAP that you have seen that would work for my situation? Considering small company that uses web apps and web tools (i.e.

Is there a specific implementation of LDAP that you have seen that would work for my situation? Considering small company that uses web apps and web tools (i.e. Google Apps for email, rackspace cloud files, etc.). If I am not mistaken, the versions of LDAP I have seen implemented required Microsoft Exchange Server and major infrastructure investments. That's more than what we are looking for. For passwords, I am thinking of everything for all my users. E.g. email passwords, passwords for my various hosting accounts, for all the services we use on a daily basis. The idea being that if someone wants to find out what their password is - without having to do password recovery - they can view one file.