The authoring module of Yacapaca is now in ‘Beta’. If you fancy playing around with a really leading-edge elearning system over the Summer, let me know. To the best of my knowledge, Yacapaca is the only system that lets you create, set, mark and monitor your own tests and assessments, all online, completely without charge. To request inclusion in the Beta programme, simply email me ian_gs[at]chalkface.com. Meanwhile, to whet your appetite, here are the authoring instructions (PDF) to download.
Yacapaca teachers' authoring module in Beta