logstash - logstash is a tool for managing events and logs.
Hull - The engagement layer for the internet. Hull is a platform that offers identity management, user engagement, segmentation and targeted messaging for your app.
rsyslog - Rsyslog is an enhanced syslogd supporting, among others, MySQL, PostgreSQL, failover log...
Drmetrix - DRMetrix is the first 24/7 commercial monitoring platform designed for the direct response television industry
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.
Price2Spy - Price2Spy is a price monitoring, pricing analytics, and repricing tool, meant to help eCommerce professionals keep an eye on their competitors or retailers.