Drillster is one of my favourite eLearning tools - it is essentially a flash-card type of learning or revision resource that has an adaptive aspect by use of an alogrithm to monitor progress - for full details see the Drillster info page.
Drillster is incredibly easy to use when creating Drills and can include text, images or both. Drillster is ideal for learning names and definitions and would work well for any vocabulary learning in any subject. Drills work well on mobile devices and tablets (at least on my Android devices).
Drills can be embedded into a web page, or you can just provide a weblink to the Drill itself. A free account is required to create Drills (although you can login using a Google or Facebook account) but no account is necessary for students to use a Drill. If students do set up an account Drills become far more effective by monitoring their progress over time and the algorithm will act to 'top-up' their learning more effectively.
Examples I have created are included below and there are many more available on the 'Drill Store' although a number are foreign-language.
