I'm always unsure about using code released under Creative Commons. What are requirements wrt. attribution? Does ‘Share Alike’ mean that the source code of a pr

I'm always unsure about using code released under Creative Commons. What are requirements wrt. attribution? Does ‘Share Alike’ mean that the source code of a product using the library must be released under CC BY-SA as well? Otherwise, Presenteer looks nice. Text becomes a bit blurry during animation (Chrome 18.0), but apart from that—no problems, and API seems clean.