The TurnitinUK plagiarism detection service has now released an anonymous marking option.
When you add a new Turnitin Assignment there is now a new screen with the usual options of setting the assignment’s title and start date etc. but at the bottom of the screen there is a “more options” link. Within “more options” is a new feature: “Enable anonymous marking?”. If this option is switched on then course instructors will not see any student names in the TurnitinUK system until after the post-date (which is set when the assignment is set-up).