Here's a tip passed on by someone I trust. He/She says it works very well.

Find a very popular video. For example: "Politician gives controversial speech".

Make a video using same title, but add "my reply" to the end, such as:
"Politician Gives Controversial Speech - My reply" (response, opinion, etc)

Now make a video slideshow, using some background music and either use text or voice over and tell your side.

This can work for product reviews, movies, music, etc.

Add a link to an Amazon affiliate product, clickbank, a CPA, email capture, etc. in the description.

Upload and promote using Youtube strategies. (Sorry, I'm not an expert, just reporting)