Analysis Console for Intrusion Databases
According to the ACID website.
"The Analysis Console for Intrusion Databases (ACID) is a PHP-based analysis engine to search and process a database of security events generated by various IDSes, firewalls, and network monitoring tools. "
I use ACID with Snort/PostgreSQL, and I find it to be a good piece of web-app.
ACID provides a useable interface to quickly search and report on the Snort data.
ACID is written by Roman Danyliw