Currently online subjects that have webinars are using gotomeeting software.
First you must register to attend the meeting,
Next before the meeting you will receive an email about connecting to the webinar
Follow the instructions and connect to the meeting.
To join a meeting, you will be asked for your Meeting ID
The gotomeeting software will install the client software on your computer so that you participate in the meeting.
further information can be found at http://www.gotomeeting.com.au/meeting/home?c_name=g2m_free_au_test