There are many options for publishing you works, both on and off-line. And the landscape is constantly changing. Thanks to search sites like Google, even the most obscure posting can be found easily.
One of the saddest things is to find a great Internet resource that is no longer available. An instructor has moved to a different school district or retired and their pages on the school’s server have been deleted. Or funding is no longer for a project and all content has been lost.
Check publication opportunities in the magazines and web sites of your favorite professional association.
Other opportunities include web sites, journals and magazines maintained by professional associations, accessible only by their membership, and NSF test bed projects whose mission is to support a reference or help desk or projects, related to yours (e.g., TERC for environmental studies).
Always make a copy of your work and, if you can, publish it on a web site that you control. It ensures your work will readily be available both now and in the future.
When you publish, indicate whether viewers can download it freely or must seek permission. Making a PDF version of your work available will be greatly appreciated.