Links from .gov and .edu sites are considered valuable by many webmasters. So how you find them?
Its actually very simple to find all the .gov or .edu sites. On Google/Yahoo you can type site:.gov and you will get the list of .gov sites.
If you type site:.gov blog you will get all the .gov blogs.
Here is an example that gives .gov sites
http://www.google.com/search?hl=en&q...ov&btnG=Search
You can find the .edu sites similar ways.
SOURCE:
cosmocentral.com/post/How-to-find-gov-and-edu-sites.aspx