I need a software tool (web-based) for sharing my screen using Microsoft Surface Pro (Windows 8) OneNote for Teaching Via the Internet

I am a teacher running an online education web site: [login to view URL] I need to find the best possible software tool, or combination of applications, to allow me to project my screen (screen sharing is not necessary but would be helpful as the student might need to add something), typically using Microsoft OneNote across the Internet for non-technical people. I will be using OneNote on a Microsoft Surface Pro using Windows 8. This software/application(s) needs to satisfy the following: 1. It has to be compatible with Windows 8 on my end but compatible with a wide-range of computers/OSes on the other end, including: Apple, Windows, Linux, mobile/smartphones, tablets, etc. 2. It has to have web-based support on the viewer's end. 3. It should be specialized for a program like Microsoft OneNote or some alternative application that is as good as or better than OneNote and that works extremely well with Microsoft Surface Pro device. Notice that this is more of an advice/consultation project than a development one, unless you have some development/customization project in mind! Please only serious, thoughtful bids who can test out their recommendations with me!