Apache::Centipaid is an Apache add-on module that allows content providers to collect small transaction fees (as low as $0.001) as payment for accessing parts of their Web site without changing their Web site design. The micro payment solution relies on Internet stamps for payment, providing a secure and anonymous method of payment. The module takes care of authorizing, accepting, and authenticating payments, as well as granting and disallowing access to users based on the payment information. It requires Apache with mod_perl support enabled.
The Centipaid PHP module allows administrators of PHP-based site such as PHPNuke sites to charge their users nominal fees to access certain sections of their site. It allows for groupings of modules in zones with their own rates and duration, and supports unlimited zones and modules.
SurgeMail is a next-generation Mail Server. It combines features, performance, and ease of use into a single integrated product. It supports all the standard protocols, such as IMAP, POP3, SMTP, SSL, and ESMTP. It supports several anti-SPAM features which include friend-lists, black-lists, email postage using centipaid, smite, and more.