Movie and TV show recommendations appear to be one of the Next Big Things for startups--upstart Jinni has just entered a scene we previously saw Clerk Dogs step into. Launching with its own ...

And, of course, Python is used extensively within Netflix's machine-learning algorithms for things like content recommendations, artwork personalization, and marketing.

If you don't know what to watch Friday night, look no further than this list of the top movie recommendation engines on the Web. They all offer something different.