Originally Posted by mrinalb
Hey, If you are unable to get the links from the mentioned site(s); Don't waste time.
the basic concept was to get the links from authorized and popular websites
This is the key point, there is nothing special about edu or gov websites, there are no bonus points to score getting links on them, it just happens that most edu and gov websites have high page ranks and site authority. Unfortunately, they're exceptionally hard to get links from; why would a university or government website link to some random business website?
Spend your time looking for stuff you can get a link on (relevant to your business, has a link exchange, is a forum, allows comments etc) which also has a high PR and finishes well in search results, you will find more sites, more quickly and more easily than chasing edu and gov websites around and get exactly the same SEO benefit.