worth link

is there a software that is able to say in a number the worth of a link with a algorithm ?

I don't think there is such thing. However, you could check the number of outgoing links on the page, the page rank and the size of the content. It also matters if the content is related to the link.

By utilising tools such as SEOQuake and Yahoo's Site Explorer you will be able to make your own judgements fairly quickly as to the value of a link. Some key considerations:

- Relevancy of on-page content
- Quality of the content
- Number of relevant backlinks to the page
- Number of other external links going out from a page
- Age of the domain

You also need to keep in mind that different webmasters will have different ideas as to the value of their links.

helpyou,
I've seen a few of your posts asking the same question about the worth of a top spot in the SERPS or the value of "owning" a particular keyword.

In my opinion the worth is relative. It all depends on the keyword, program being promoted, conversions, and demographics. I am sure many other more experienced webmasters will say there are many, many more variables. The underlining "value" is all based on these factors.

The best way to answer that is to promotes a program and see how much you make OR offer advertising space and see what the market will offer.

Good luck.