MN Viewer (Mobile Network Viewer) is a lightweight framework designed for system administrators who would like to be able to monitor many aspects of their network from their mobile phone. It allows for very simple expansion using simple PHP plugins. It is designed to integrate with other monitoring tools such as Cacti.
YFi Hotspot Manager is a modern AJAX Web front-end for FreeRADIUS 2.x. It has support for vouchers, permanent users, billing post paid, and pre-paid. Multiple languages are supported. Statistics can be generated. It works with CoovaChilli and Mikrotik. It runs on Ubuntu and CentOS. It has Google Maps integration. Third party systems can be integrated. There is thorough documentation.
LiKee (which stands for LIne KEEper) is a monitoring system for supervision of Web applications and pages. It is a tool for automation of service processes of uptime-critical Web applications. It periodically monitors remote pages and evaluates their content with regular expressions. It can send alerts through email, GSM calls, and SMS. It offers Web-based administration and reporting with advanced graphical design.