Animoto and Flixtime are two similar online services that let you automatically produce nice video pieces from your photos, video clips and music, we can consider them as an evolution of the slideshows.
With the free accounts you can create short videos (30″ Animoto, 60″ Flixtime). To have more features and unlimited video length, PRO accounts are available with the following plans:
I've created the same kind of show, 9 pictures and some text, in both environments and you can see the embedded results. The user interface for editing the videos is quite easy to use to create, add photos, remix the sequence, share on social networks (for example exporting to YouTube) and so on… you can evaluate what's the style you prefer, personally I like a bit more the Animoto's one but it's a question of taste.
Create your own video slideshow at animoto.com.