Will it affect my web conferencing sessions in any way if I have two monitors running on the same machine? Also do web conferencing systems support running to both monitors or will only contents of one monitor show up for the other users in the meetings?
What web conferencing system are you using? I doubt having two monitors would have an impact since your graphics card is handling how your monitors are displaying.
Yes, you can run two or more monitors in a web meeting session. The drawback is that it will slow down the performance. All major web meeting providers (webex.com, gotomeeting.com, gomeetnow.com, etc.) can support multiple monitors.
It really depends on which one you use but just boot up a test first of all and make sure you're showing the right part of the screen(s). I can't remember what the default is.
