Image of OpenWrt OS, with snort community featured in.
Pulled Pork for Snort and Suricata rule management (from Google code)
Honeypot sensor on Raspberry Pi
IDS/NSM, Snort, Suricata, Bro, Sguil, Squert, ELSA, Xplico
Snort/Snortsam by Tran Phuong Binh
Elya is an front-end of SNORT.
Open Source SCADA Security Evaluation Tool
BlackBSD
pyflag plug-in that makes a snort alert log driver