This one is easy as “more is always better”, as long as you can use it effectively. While 720p cams were the norm in the recent past, advances in web conferencing software, video compression, imaging chip cost reductions and network bandwidth improvements have placed the benchmark squarely on 1080p-30 (1920x1080 @ 30Hz). This means that you should make sure that your camera is able to natively capture this resolution. This is the resolution typically used today by high cost hardware solutions, like Cisco, Polycom and Lifesize, so the images you capture for web conferencing will be right on par with these high-end solutions.