There are a lot of different technologies in use in the fighting in the Gaza strip, Israel's Iron Dome missile defense system, Hamas's long-range rockets, and even drones.
Now it looks like both sides are using GoPro-style cameras to post videos of military raids online. Elias Groll at Foreign Policy magazine points out a video posted by the Israel Defense Forces this week:
Earlier in the week Hamas posted a similar video with even more detailed footage of infantry tactics: