The Demonstration page of Moodle is available at the below given link and the demonstration of  Openmeetings is available on request. You may send us your request by filling up this form.

Moodle Demonstration

Please visit the above provided link and enter the credentials:

user : moodle
Password : Moodle@1234

Apache Openmeetings Demonstration

Please visit the below provided community link. 

Apache OpenMeetings Project – Demo serversÂ