Let us count the ways...

Online class assessment
Surveys - Paralegal Job Fair Questionnaire, and your Alumni Association
Combine a Quiz with Hypernews "threaded discussion" - Religious Studies
Orientation in Clinical Programs
Poll and verify whether an online student is qualified to take an online or ITV class.
Basics - test online library basics
Sign-up form for conferences - meetings, etc.
Interviews - initial intake, or more comprehensive
Train your students on necessary computer skills for your online class
Exit assessments - "Let's see what you have learned
Reviewing what you know
Evaluation of programs, conferences, or workshops
Request for Password to take your online course