I came across this fabulous website, Tikatok, to help promote your student’s writing. What a great way to add both authenticity and a real audience for their writing. Please read below from ilearntechnology blog post.
"....With Tikatok each of your students can become a published author, create, share, and gain an authentic audience for their writing and illustrations.
Students have options when creating a story, they can choose a topic and idea to start a story or they can start from scratch with a blank story. The first option allows students to get help with the hardest part of story creation, thinking of an idea and beginning a story. Students fill in blanks about their story and get a basic story that they can embellish and add to. In the second option, students create a story from scratch.
Teachers can register classes and keep track of the stories their students are creating. Teachers can also send students messages and comment on stories. There is also an option for students to work collaboratively on a story. Students can adjust their stories template, colors, text, and images. When students are finished, their story can be viewed online, printed out from a PDF file, or published and purchased for $15-20."http://ilearntechnology.com/?p=815
Check out this example - please click on the below graphic and the next screen will show a quick animation of the story.