We are looking for modules to be built for Drupal 6.x that will do the following:

This is a link exchange project where site owners can enter their site url and keyword or key phrase and a report is given that shows them the most qualified candidates for links exchange.

Here are the basics:

To qualify the user must have an account.
The user must have had our reciprocal link up for x number of previous hours/days (definable) (or) pay for the service.
Results are based on keyword and page rank of site candidates.
Will try to extract email addresses from candidate sites for the user and will deliver via a downloadable csv or tsv file for that user so that they can import data for use. The data will just be 2 fields, email and domain name.
Link candidate lists are saved for user and the user can choose to keep, delete or append to the list.
There will be an entry for each link candidate for reciprocal link placement. This is the url that the candidate has placed the link to the user's site.
Will give the option of allowing the users the ability of tracking if site has recipricol link on their site. This will only work if user enters url of placement of their reciprocal link as described above

Possible addendum to module:
Site owners may also categorize their site for site subissions in our link directory. These links must also be checked for recipricol link and allow deletion of links from category due to lack or reciprocal link.