eLearning, E-learning, E-Learning or e-Learning?

Rutwin Geuverink said:

• Google gives about 12,200,000 results for "elearning", and about 17,300,000 results for "e-learning". This would indicate that "e-learning" is more common than "eLearning" - unless the extra 5 million references were all coming from online discussions about the frequent misuse of "E-learning"