There are huge numbers of videos sharing sites available on the internet all with some more or less interesting content
. Start by searching video sites for you sites keywords, begin with YouTube since is that sites is the most popular and probably largest. Order results by "date" if there are a few results and by "relevancy" if there you get many results for your keyword. Go down then list and try to find videos that is good for your site, covers a subject that is related to yours. Take a look at how old the video is and compare it with its popularity to decide if the video is worth writing about. When you have found a video you want to use copy the embed HTML code so you can use it form your page to show the video.
Most of the video sharing sites, including YouTube, present videos in the Flash video format. flash video file you will need some kind of browser plugin or other software as explained in the linked article. When you download the video from YouTube make sure you get the high quality version of the clip. If you have a good internet connect YouTube should be able to detect this automatically but if this for some reason does not work you can foce the settings in your account settings / Video playback Quality.
Capture video frames
Next you need to capture video frames from the downloaded video that you have decided to write about. Use the Fast video indexer program and capture the frames as jpeg images. If the video file is short you might want to change the default settings to save video frames that are closer together in time. Some of the advantages of using images instead of video files is that they will display without requiring any plugins, your web page will load quicker and you can display captured frames from the middle of the video that match what you are writing about.
video capture software
Writing the text
Now that you have a selection of images from the video it is time to start writing. As you write about the video insert relevant video frames from among the ones you captured. Use the video as your main inspiration for writing. You can also use feedback about the videos and spin on their comments. At the end of your text add the embed link to let users see the original video you are writing about. Using this method you can quite easily produce high quality article matching your site about topics you already know people are interested in.