An article posted on Feb. 20 on ReelSEO.com discusses the value of captioning YouTube videos. According to the article, many YouTube video producers are reluctant to put the effort into captioning a video without a clear understanding of the return on investment. The article offers access to a free tool to help calculate the ROI of YouTube closed captions. The article also cites the findings of a study by Discovery Digital Networks of the SEO impact of captioning videos.