A general place to start with popular, scholarly, trade, and newspaper articles on nearly every topic. Many articles are full-text. ALSO CONTAINS BOOK REVIEWS.
An index for all things Education, including non-peer review, "practical," Eric Documents. Use the Advanced search and check box for Journal Articles Only for peer review.
From WPA: An inventory of publications in writing studies, including post-secondary composition, rhetoric, technical writing, ESL, and discourse analysis
Going Deeper
Try the Getting Started Pages for Interdisciplinary resources.