I am Doctor Dae Yun Kim PH.D. ( Doctor of Philosophy ). Graduated from Life University ( University Of South Los Angeles, Gardena, California, United States Of America ) with Double Master Degree and Bachelor Degree. Graduated from P. I. U. ( Pacific International University, United States Of America ) with PH.D.( Doctor Of Philosophy). Studied in Graduate School of Business Administration as Major in Master of Business Administration ( M.B.A.).Certified Business Consultant. Businessman(Former).

どんぶり大破

Mastodon は、オープンなウェブプロトコルを採用した、自由でオープンソースなソーシャルネットワークです。電子メールのような分散型の仕組みを採っています。