We are delighted to announce the publication of the first issue of JEDM -- the Journal of Educational Data Mining. We would like to thank the hard work of our editorial board and anonymous reviewers in selecting, from the excellent submissions received, three articles that provide important and novel findings and perspectives in emerging areas of Educational Data Mining. In this issue, we have, available for free on the web: Tara Madhyastha and Earl Hunt mine multiple-choice assessment data to discover conceptual structure, and inform instructors about the relative difficulty of different items. http://www.educationaldatamining.org/JEDM/images/articles/vol1/issue1/JEDMVol1Issue1MadhyasthaHunt.pdf Saleema Amershi and Cristina Conati build user models for exploratory learning environments, using both log data and eye-tracking data, with a combination of supervised and unsupervised methods. http://www.educationaldatamining.org/JEDM/images/articles/vol1/issue1/JEDMVol1Issue1AmershiConati.pdf Ryan Baker and Kalina Yacef review the history and current trends in the field of Educational Data Mining (EDM). The most-cited papers in EDM between 1995 and 2005 are listed, and they discuss these papers' influence on the EDM community and beyond. http://www.educationaldatamining.org/JEDM/images/articles/vol1/issue1/JEDMVol1Issue1_BakerYacef.pdf The entire issue is available at http://www.educationaldatamining.org/JEDM/index.php?option=com_content&view=category&layout=blog&id=36&Itemid=55 We encourage everyone in the EDM community to submit their work to the JEDM journal. Our goal is to produce a journal of the highest possible quality, as a service to the EDM community. A journal is only as good as the papers it receives to review, and the reviews it receives from its editorial board and special reviewers. We appreciate those of you who have submitted to or have reviewed for JEDM, and welcome the community's future participation. Best regards, Kalina Yacef, Editor Ryan S.J.d. Baker, Tiffany Barnes, Joseph E. Beck, Associate Editors