As you know, WikiHow has a tool which allows you to embed videos into articles. To choose a video, you’ll search for the topic of your article and then choose a video out of the list that it generates, which are from YouTube. You can’t embed videos other than the ones that the search finds. This might prevent users from doing things such as uploading advertisements/spam/unhelpful videos/etc, but the problem with this method is the search finds the most popular videos, and they sometimes aren’t the best. Also, if there aren’t many videos on YouTube about the topic or the search offers un-optimal videos (e.g. videos that don’t match the article’s topic exactly but showed up because they were popular), you’re out of luck. A nice thing to have would be a way to manually input a link to a video (for example, a good video that you found which didn’t show up in the results, or maybe even a video that you made yourself) which you want to be embedded into the article.

There is way to do this. From the Tips section of http://www.wikihow.com/Embed-a-Video-on-wikiHow *If you’ve found a video directly on the YouTube site and would like to embed the exact video to the article, copy the exact title or permalink (the code of numbers and letters) from the video’s URL (from the Share button on video page underneath the Share this Video area, the one that looks like it’s been shortened by a URL shortener) on YouTube, and paste this address into the search bar on the Embed Video page/area search box containing the article title by default.You’ll have only this video to choose from in the search bar in the Video Adding tool/Embed Video link.

Thanks, Isorhythmic! Sorry for being so naive!