Here’s a smart way to get people to buy or rent movies from your website. Let them send clips from popular films as custom video greeting cards.

blinkBox is an online video site with a small selection of popular movies and TV shows available for users to download. But the site’s most useful feature is the ability to take clips from selected videos, add a message to the beginning, and share the clip with your friends.

It also lets you embed clips on your blog or website.