There have been increasing interests on social learning strategies utilizing social media such as wiki, micro-blog, social networking sites in the context of corporate training and development field. Two perspectives exist in seeing Internet evolution called web 2.0 and social media. One is a light perspective that web 2.0 is just a buzzword for marketing strategies. The other is a serious perspective that web 2.0 needs to be seen as an paradigm shift to facilitate enormous social changes. This study, based on the serious perspective on web2.0 and social media phenomenon, is to reflect and explore on corporate learning and human resources strategies for the age of social media. First, from the viewpoint of ecological psychology, emergence of social media was discussed as an affordance to change corporate learning ecology. Also the meaning and direction of learning 2.0 were explored based on the discourse about 'web as platform' in the IT field. Then, essential meaning of 'social learning' was discussed. Second, new direction of human resource strategies was discussed in four areas: purpose, content, method, e-Learning. The discussions include 'Pareto law's HRD vs. long-tail theory HRD', 'taxonomy style curriculum vs. folksonomy style curriculum', 'training system as closed portal vs. learning eco-system as open search', and 'e-learning as courseware vs. micro-learning'.