Pinterest has now a service where you can pin the videos you stumble upon online. You can organize them into visually appealing pinboards and access them whenever you want. Check out this article I wrote about this service to learn more about it.
Screencasting is a better and great way to showcase a procedure, to teach,demonstrate a service or to create video tutorials without having to write a content or an article. Screencasting tools are available both as desktop applications (Free and commercial) and web-based services. The good news is that there are a growing number of screencasting tools that are completely free to use; some do not even require a registration to let you get started.