A MyData account allows users to view their download history from the Inter-University Consortium for Political and Social Research (ICPSR), receive email notifications when studies are updated, and authenticate every six months to access resources both on and off campus. The account operates like a shopping cart for downloading studies. MyClass enables instructors to create temporary accounts for students to access and work with data without needing permanent MyData accounts. The document provides contact information for questions about MyData or MyClass accounts.