http://linuxaria.com – I’m usually for the old school methods: go down to the terminal and get all the information you need from there, terminal don’t tells lies. But i also understand that with the cheap price that i see around for the VPS more people are starting to use Linux VPS for their service, and a graphical dashboard can be really useful for many VPS owner. (Software)

http://greenmice.info – ZTC (Zabbix Templates Collection) - collection of templates and UserParameter scrips for zabbix for server aviability and performance monitoring. This version includes templates for generic Linux monitoing and PostgreSQL, PostgreSQL+Slony and nginx running under Linux monitoring. (General)