Inventory to assess which students might be at risk for failure in online courses. Costs the institution money after the first semester of use. Bills itself as a retention tool that assesses student skills and goes beyond the simple "Is distance learning for you?" modules most distance learning centers offer.
Tips for teaching that reaches students with all personality types (based on Myers-Briggs categories). Might be useful for teachers to read but probably not for students to review since it's geared toward teaching approaches rather than learning.
Site with inventories for learning styles as well as multiple intelligences. Inventories here seem to be short--pop-up at the site claims to identify learning style in less than one minute, whereas other inventories have nearly 50 questions.
Another online survey allowing students to assess their preferred learning style and providing results with suggestions about how to approach studying based on that style. Quiz is clearly laid out, but MERLOT reviews suggest the interface isn't quite as good here in the results section as it is on the VARK quiz or the "Index of Learning Styles" also listed in this personal collection.
Nancy McTaggart's study skills tutorial site. Leads students through a series of simple self-report diagnostic questions to help them determine what study skills they need help with and provides simple tutorials for each skill (time management, test-taking, note-taking, etc.). The site is kept simple so that it's easy for students at any level to use, so some more advanced students might find it insulting, although many of them probably need the suggestions anyway.