如何获得高质量的反向链接？
to get high quality 反向链接s, you should be having high quality content that people will want to link to. the best way to do this is build your site’s authority (start by ranking for small and less competitive keywords) and make your content discover-able by potential linking sites. other ways to get high quality 反向链接s is using techniques haro, guest posting, link 建造 with infographic 等等
这里 are some working ways to get .edu 反向链接s:  
您可以赞助大学/大学活动。建立针对学生的特定产品折扣或建立一种对学生有帮助的工具，并推销大学作为资源链接。