Vine offers a clean interface, but that might mean you need a little extra orientation to get started.
My vines can be found here.
I have written a series of short posts about Vine. Enjoy:
Vine Video for Museums: Post 1
How can Museum Educators use Vine?
The Right Audience for Vine
Fostering Participation in Vines
Vine to Share the Museum Experience
Narrative in Vine
Looking at Art through Vine
Vine on Your Own
Vine Interface—An Orientation
Vine and Audio
Stop Motion Tips
I produced these posts as notes in preparation for co-writing this paper for Museums and the Web 2014, with Alli Burness, @Alli_Burnie; Patty Edmonson, @Retrograde_D; and Chad Weinard, @caw_
Our presentation Vine feed is here.
Our workshop in April, 2014 sparked some good conversation, see the Storify.
Many of our participants made some wonderful Vines, check these out.