VIDquik is a service that I tried out five months ago. At that time it offered video calling. Today, I gave it another look because it now provides web conferencing too. The web conferencing option allows you to present slides while video conferencing and text chatting at the same time. To host a web conference you have to register for the service, but your participants do not. Participants join your conference by simply clicking on the link that comes in the invitation email that you send to them.
Applications for Education
Using VIDquik could be a good way to host an online tutorial session or to deliver a short lecture over the web. When I tested VIDquik this afternoon I saw what looked like an option for screensharing, but it wasn't quite working the way that I expected it to. Hopefully, this feature becomes live soon.