Invite certain people to attend an event live, but don't miss out on those that you can't invite to take part on site. You can invite them virtually, so they can join in on the go from wherever they are with an internet-ready device.

That way you can also achieve and mix the feeling of a live event, combined with the extended reach of an online event.

The participants on site and those behind their screens can both take advantage of using online tools (e.g. Mentimeter) and the live chat of the event. That way you can connect everyone even if they are at completely different locations, aswell as analyze the data you got afterwards.