Has a somewhat regular column of GameDesign articles on Gamasutra, called Designer's Notebook. While it is formally focused on ComputerGames, the articles are almost always general and insightful. He also has a personal page, which includes a list of all his Gamasutra articles.
He has also published two game related books:
Andrew_Rollings_and_Ernest_Adams_On_Game_Design?, ISBN 1592730019 (with AndrewRollings)
Break_Into_The_Game_Industry:_How_To_Get_a_Job_Making_Video_Games?, ISBN 0072226609