Data Mining Needed

We are looking at developing a web spider / data mining application to collect results from some specific online jail websites rough 6-8. The results will be recorded in an offline database, then the data would be extracted for use in additional applications. A spider wil be created to begin obtaining additional information for each individual in the database. A second spider will go to a list of court websites to obtain docket information. The data mining of the jail websites should occurs hourly and only include the new listings. The spiders should continuously obtain information on all people in the database. Currently our company database is maintained in .net, MySQL, and C#. This component needs to be able to be assimilated into our other databases in the future.