b-jet triggering in ATLAS

The online event selection is crucial to reject most of the events containing uninteresting background collisions while preserving as much as possible the interesting physics signals. The b-jet selection is part of the trigger strategy of the ATLAS experiment and a set of dedicated triggers is in place from the beginning of the 2011 data-taking period and is contributing to keep the total bandwidth to an acceptable rate. These triggers are used in many physics analyses, especially those with topologies containing more than one b-jet where higher rejection factors are achieved that benefit from requesting this trigger to be fired. An overview of the b-jet trigger menu and the performance on data is presented in this contribution.