Kayak roll-with a slowmotion replay!

Thanks to Michaela I found out how to post this video, and it showed up to be  SO easy! Well, if you know where to find the answer. The point is, that a video has to be uploadet somewhere else, before it is at wordpress. I used YouTube, Michaela told about Google, and I saw two other possibilities. When one has made a link to a video, everything is easy. The quality is not too good, that will be my next goal to improve.Thanks again, Michaela.

Asking for an advice

I want to post a short video showing my husband comming up from the depth, by rolling the kayak all the way, but two days of searching for an advice of how to do, is obviously too little to let the answer come out in the open. I learned something though; the video has to be uploaded at YouTube first, unless one has bought the possibility to upload directly in WordPress. Read the text below and save some time, if you should get the same idea as me. I have to use a lifeline now, and ask both a friend and the audience; how do I do?

http://support.wordpress.com/accepted-filetypes/

Currently, you are permitted to upload the following file types to your WordPress.com blog:

Images
.jpg-.jpeg-.png.gif

Documents
.pdf (Portable Document Format; Adobe Acrobat)
.doc, .docx (Microsoft Word Document)
.ppt, .pptx (Microsoft PowerPoint Presentation)
.odt (OpenDocument Text Document)

With the purchase of the space upgrade you are also permitted to upload the following audio and video file types:

.avi-.ogg-.m4a-.mov-.mp3-.mp4-.mpg-.wav-.wmv