If you're interested in using the Adobe Connect video conferencing system, you may want to see the extensive help section at the Adobe Connect Hub
Request a Adobe Connect Room from your College
http://meeting.psu.edu/contacts
Classroom Tips
http://meeting.psu.edu/node/346
Adobe Connect can support virtual office hours, virtual lectures or sharing computer screens. It works on both Windows and Mac, and supports, text chat, audio and visuals and online Powerpoint presentations
Users (especially instructors) may need to purchase a microphone or USB headset, but Breeze can be usable without these depending on computer equipment and audio set up.