The Media MashUp project is funded by the IMLS (Grant LG-07-08-0113 ) to build capacity at libraries for computer-based programs for youth that help build 21st Century literacy skills. Twenty first Century literacy skills include interactive engagement with technology, collaboration and team problem solving, taking initiative and managing time and the use of higher level processing skills (www.21stcenturyskills.org/). This project uses the Scratch programming platform (http://scratch.mit.edu/) developed at MIT to help foster youth's 21st Century literacy skills. The professional audience