Capped collections
Graylog2 use cases for distributed web applications
Graylog2 cloud austin
Log management with Graylog2 - FrOSCon 2012
Rails exception tracking with Graylog2 - RubyAndRails 2010 EU
Graylog2 (MongoBerlin/MongoHamburg 2010)
Managing the logs of your (Rails) applications - Arrrrcamp 2011
Managing the logs of your (Rails) applications - RailsWayCon 2011