Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Fluentd - Fluentd is a cross platform open source data collection solution originally developed at Treasure Data.
7todos - A task board for indie hackers
Splunk - Splunk's operational intelligence platform helps unearth intelligent insights from machine data.
TaskPaper - Plain text to-do lists for Mac
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.