These are just a few of many advertisements, campaigns, and PSAs that primarily use pathos (emotional appeals) to make their arguments. Or at least to make you take notice of their arguments. Feel free to link/embed any other similarly emotionally-charged videos that you find on your blog.
Some are powerful and effective, others are way over-the-top and basically rely on emotional warfare to make their point. Please be warned of the content if you are sensitive to any of these topics. The animated anti-bullying video is especially sensitive as it involves the hard issue of suicide as related to bullying.
Pfizer "More Than Drugs"
Kids see, kids do
Sad Monkeys Environmental Ad