I've been a Latin teacher for 13½ years, after being a Greek and Latin student in Undergrad and Grad school. I found out when I started teaching that while there are a number of Latin textbooks both old and new, there are very few resources available to teachers who really want to engage their students off the translation page, or simply provide them with stronger consistent practice worksheets and info handouts.
So, I started making my own, and have never really stopped. I estimate I've made over three thousand original resources, from PowerPoints and elaborate lesson plans, to nuts & bolts grammar charts, language drills & explanations, reading & writing resources, etc. A good share of these are organized in my file cabinets and computer drives in hard or electronic copy form, while still hundreds more are organized around Google Docs, Drop Box, my Website, and my YouTube page. I am certain I have the most elaborate and organized Latin teacher website on the internet. I've also put together dozens of video playlists on You Tube, some with videos I've made myself (or worked with students for their projects), and hundreds more which I've organized carefully into mythological, historical, and language topics relevant to every level of a Latin education.
Finally, because students take classes from me for as much as 4-6 years in a row, every school year I develop new online writing, research, seminar, and presentation projects for every level. We've used Edmodo, Ning, Google Docs, and several other resources summarized in the links and descriptions below.
I'm always hunting for the perfect resources for every lesson big and small, so that my students (and myself!) may have as many ways as they can to spark their minds and imaginations.