Micro Login System is a simple PHP-based user login system that stores user registration information in a flat file instead of a MySQL database. It is easy to install and change the design via CSS. The package contains login, logout, and registration forms. An integration example is included.
RetinaPost is a PHP class/WP plugin that makes CAPTCHA's clean and engaging using feeds or custom text. It is easy and intuitive for your Web site visitors. You can choose to use your feed or custom text to inform or guide the user to read more articles or to perform other actions. Use RetinaPost to stop spam and bots on forms, on comment posts, new account registrations, polls and surveys, and more.
zLogFabric is an all in one cross-platform logging solution that collects log lines/messages over a messaging system to a central server instance. The modular design enables the server to store, forward, alert, and generate live statistics out of the logged data. It can collect log information from files, syslog, log4j, log4net, and Windows event logs.