This video is a collection of ippon and other scores from high-level international judo competitions, with approximately the same distribution of methods of gaining ippon (a full point, which wins the match) as awarded in such competitions.

Competition judo rules generally encourage winning ippon by throw, as opposed to pins and submissions. Winning by throw generally requires the throw be forceful, high enough amplitude to lift an opponent off the floor, and controlled enough to put an opponent mostly on his back.

From Wikipedia: Ippon is awarded for a "throw ending with an opponent largely on his/her back, demonstrating full control, having such amplitude that the feet of the player receiving the action leave the tatami (the contest mat). The back does not necessarily have to touch - it is the exposure that is considered by the referees. Landing in a bridge will score Ippon, even though there was no direct contact of the shoulder blades with the mat."

Throw ippon was established to reward judoka for strong throws, which in a street fight would hurt their opponents and allow the judoka to establish a dominant position on the ground rather than fighting to get to one from a neutral position. Nowadays, ippon by throw is sometimes awarded for some less-than-forceful throws, and some traditionalists, as well as some modernists like myself, believe that this is counter to Kano's original intentions as well as the concept and spirit of judo.

Still, competition judo is exciting to watch, and there are still a huge amount of damn good throws, as you can see from this video. Enjoy!