glogg - glogg is a multi-platform GUI application to browse and search through long or complex log files.
V12 Data - V12 Data offers rich data sets with verified addresses and emails for personalized marketing campaigns.
BareTail - BareTail is a real-time log file monitoring tool. Features Real-time file viewing
Adobe Audience Manager - Adobe Audience Manager is a data management platform that integrates online and offline data to deliver a unified view of all your audiences
klogg - klogg is the fork of glogg - the fast, smart log explorer.
Google Audience Center - 3 votes and 6 comments so far on Reddit