We have been making software updates to the website and understand that the functionality to take notes in a study was unavailable. The updates are completed and that functionality is restored for those who are logged into the site! If you were in the midst of tracking a study, you can now go back and update your progress. Please note - you do NOT need to register on the site in order to access all materials. Creating a log in simply allows you to take notes, track progress and participate in forum discussions. Thank you!