I sent a link to MyOwnDB to Emily Chang, from Ehub, and she actually posted it on Ehub. Seems her site is quite popular as we got hundreds of visits from there!
I have published a screencast about linking entries in different tables in MyOwnDB. It first shows how the administrator should define it, and then demonstrates its use when managing data. You can define one-to-one and one-to-many relations, and the interfaces adapts itself according to circumstances (eg if there's no entry available for linking, the button to do it is hidden).
