Hi Stan
Personally I use YouTube, the accounts are free. Then if you use a smartphone to shoot the video, you can upload via the Youtube app. Then you get the link of your video, and add it to a post on here with the 'Insert Hyperlink' button.
That's how I do it. I think its a case of ask 10 people, and you'll get 10 different answers...
If you want to take this route and need more detail, pls just PM me.
Best regards
David.