We have been going to the LEGO Store off & on for the monthly mini-build, but haven't been able to make it there for quite a few. I've been searching the web for the instructions for the builds we missed, but have come up short. LEGO posts the current models instructions for about a week and takes them down. Is there a site where we can find the instructions for the previous mini-build models?
A list of previous monthly mini models can be found on Brickset. The instructions can be found in the notes section under the sidebar on the right for each model.