百度学术

中国领先的开发者技术社区

专注于IT教程和实例

覆盖英语四六级全程、24-15考研公共课资料，缺点就是缺少专业课的分类课程，所有课程均为百度网盘分享，部分链接被和谐失效

ERIC is an online library of education research and information, sponsored by the Institute of Education Sciences (IES) of the U.S. Department of Education.