Here are several links to different studies of Neptune Krill Oil.

Cholesterol: 34% LDL Reduction, 44% HDL Increase

PMS: 42% improvement (both physical and emotional symptoms)

Chronic Inflammation: 20% reduction

Health Benefits of Omega-3 Fatty Acids from Neptune Krill Oil

These links are a great starting point for research into the effectiveness of krill oil supplementation.

This video presentation was created by Neptune Technologies to give a detailed overview of krill oil.

Dr. Oz recently did a segment on his show about the benefits of krill oil. He now believes krill oil may be superior to fish oil for getting your omega-3's. In typical Dr. Oz fashion, he invites an audience member onstage to assist with a practical demonstration of how krill oil works in the body.

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...These krill are at the bottom of the food chain but they may be faster and stronger than other sources of omega-3's......It seems that krill oil can actually reduce the chance of heart disease......There was a big study that was just done showing that 1000mg of krill oil had the same effect as 3000mg of fish oil...
Dr. Oz

Krill oil is starting to get a lot more main stream exposure now than it has in the past. To see the entire Dr. Oz segment on krill oil, go here.

Dr. Oz Krill Oil Video