The fact that it's on a .edu domain doesn't in itself make it worth any more than any other sort of backlink, Brain.

Domain-extensions have no bearing, in themselves, either on SEO or on the value of backlinks. It's perfectly true, of course, that many .edu backlinks are very good backlinks to get, but correlation isn't causation, and it's not the fact that they're on .edu pages that, in itself, confers any "extra benefit" at all.

The point here is simply that many (by no means all!) .edu sites are also, at least to some extent, authority sites, and that's what makes their backlinks valuable ones.

Other .edu pages aren't "authority sites" at all.

I have a couple of .edu blogs, myself, but sadly their backlinks are worth no more than a backlink from any of my .com, .info or any other sites, and in fact usually worth quite a bit less, because some of my main .info/.com sites are now building up quite a bit of "authority" and some of their pages are building up some higher PR's, too.

So don't imagine that "being on a .edu site" necessarily makes a backlink better than any other sort of backlink.

The analogy that always springs to mind, in this context, is the belief that having a "blog" rather than a "non-blog website" is going to confer extra SEO/backlink benefit "because Google loves blogs". Again, the logic here is pretty mistaken, and in the same way: it's the attribution of causation that's at fault. The reality, in this case, is simply that "Google loves regularly updated websites", and a lot of blogs do happen to be regularly updated websites. Again, correlation is not causation.

If you have a niche site about arthritis remedies, for example, a .edu backlink from a university's/med-school's rheumatology site is going to be potential gold-dust, while a student forum or blog which - like so many - is non-context-relevant and PR-0 will actually be no better at all than any other random non-context-relevant, PR-0 backlink such as an article directory.

Contrary to popular belief, it isn't the "being on a .edu site" aspect of it that gives any advantage.

Call me a skepchick, but (as with so many other things in internet marketing) if you ask people selling them, of course, you may hear a slightly different story. :p

I have never seen any kind of special result for these edu links. for me they are same as any other links.
And of course the permanent link with Anchor text is stable and good. And the links from comments are also OK. but they can be deleted at any time.

You need to build a diverse link portfolio. Buying .edu links will land you in trouble if you overdo it. I personally do not buy any .edu links. My approach is to find where students go and give them valuable information. Then, they will link back to your site naturally.

The reason behind this topic is:

I get a chance to talk with a person who have EDU domains. He had an idea to start selling EDU links by offering paid WordPress Blog Post or any service like that.
My role is programmer and website designer. I was thinking either is it some value service like $1 per blog post etc. or not.

I was looking for some suggestions either is it some value service NOT interested type service. He said, he have also access of GOV domains.

What you guys suggest.

I don't see how this link would be permanent. That website could change.