Turnitin

Turnitin is independent of Blackboard but is fully integrated. This integration extends the capabilities of Blackboard by offering additional e-submission, e-feedback and online peer assessment tools.

It is comprised of three main tools:

OriginalityCheck
Text matching to assist plagiarism and collusion checks,
GradeMark
Apply grades and feedback (including audio) onto scripts online
PeerMark
Comprehensive peer assessment tool

Read More on the Turnitin TLC site