It is a proved fact that .edu and .gov links are more powerful than normal links and also improve SERPS.
The fastest way to get these links- and that too free is to search this in Google:
Anyone can edit pages in Wikipedia. There are many pages like these.
Just Google this:
You will find many .edu sites that students have added a Wiki to.Site:.edu Inurl:wiki
The above search will get you more targeted sites.Site:.edu Inurl:wiki "Type your niche here"
Read this post carefully and try it! You will get many quality links to your site.
Hope you liked this tip! Feel free to share your thoughts etc. below.