@1 Helpdesk XP Perl is a very powerful Web-based helpdesk system. It supports file attachments, hidden remarks, priority marking, etc. Unlike other similar products, this script does not use the conventional "assign/completed" method to close past tickets. Instead, it uses an intelligent method to sort/rank inquiry tickets. You can even tell whether your replies have been read by the visitors.
@1 Personal Memoranda lets your site users submit their personal information and business particulars to your searchable database (pending approval by the administrator). An email is automatically sent to the administrator when a submission is made, and an email is sent to the user when their record is accepted or rejected. Image upload is supported, as well as renaming of field titles, auto profile ID, and date-stamping (sort by date).
RLC is a tool that performs reciprocal link checking automatically. Simply tell it where the remote Web pages you wish to monitor are, and the URLs of your links. It will then crawl the remote Web pages and give you feedback on the latest status (found, link not found, or page not found/network error). You may activate the checking as needed, or set up cron to carry out the checking once a week or so.