EventHive it's an awesome tool which facilitates live discussions among audiences and speakers during presentations.

For sure a great instrument for your next conference so your audience can interact live with your speakers, just enter the #hashtag. They can ask questions, vote for the ones more popular or answer questions peer to peer. Also speakers can make pools in real time and get the results straight away and show them to the participants via Powerpoint (no need of extra equipment).

Besides EventHive offers to integrate the schedule of your event, sponsorship opportunities, create buzz via twitter and facebook and more important engage your audience.

I definitely need to give the credit to Albert (@alcchow) a student who created this amazing application for his first conference, that I'm sure will be of a great use for #eventprofs and more.