So you want to share your videos? You might win $250 if you submit your video to Atom Entertainment, which operates AddictingClips and AtomFilms. If you're serious about making movies, you might want to consider this service, given Mika Salmi's track record. AtomFilms helped launch JibJab into stardom. I asked Salmi, who started Atom Entertainment about 8 years ago, how he was going to compete for user video when YouTube seems to be the place to be seen. File-size limit at AddictingClips is 100 megabytes.