Open web analytics: an open source web analytics framework.
Piwik: downloadable, open source (GPL licensed) real time web analytics software program. It provides you with detailed reports on your website visitors: the search engines and keywords they used, the language they speak, your popular pages… and so much more.
Slimstat: another real time, open source web analytics program.
Geo IP Country database: Determine the Internet visitor's country based on the IP address
Speed-Trap: A provider of software that uses Web 2.0 technology to capture and analyse interaction at the user interface – whatever the device e.g. mobile, iPhone, PDA, gaming console, or technology deployed e.g. webpage, Adobe AIR, Silverlight, Flash, Flex, AJAX etc. – to deliver complete real-time data on every visitor and user of all your online applications
Double click: company that develops and provides Internet ad serving services. DoubleClick's DART for Advertisers (DFA) is an ad management and serving solution that can help you manage the entire scope of your digital marketing program.
Revenue science: provides targeting platform and advertising network for digital media worldwide. Its behavioral targeting platform collects and measures people’s interests and intent through their Web behaviors—the sites they visit, the articles they read, and the searches they make.
Audience targeting: AudienceScience segments help marketers reach highly qualified consumers based on specific interests and intent.