If you ever need to test LDAP stuff the OpenLDAP project runs a test server at ldap.openldap.org. It only has a few entries in it but it can be handy for building examples, or testing.
Here's how you would query/search the server in ColdFusion with cfldap:
<cfldap server="ldap.openldap.org"
action="query"
name="results"
start="dc=openldap,dc=org"
attributes="cn,sn,givenName,mail,st,l,ou">
<cfdump var="#results#">
Here's some more info about the service.