This document contains links to various websites about mobile application development and programming. The links reference photo sharing sites showing mobile apps, Japanese technology news articles, and resources for the App Inventor platform - including its main website, setup instructions, and a discussion group in Japanese. Overall, the document provides a collection of external references relating to mobile applications and programming.

1. http://www.flickr.com/photos/jezpage/4990873353/

8. http://www.flickr.com/photos/hakodx/1311105561/

9. http://www.itmedia.co.jp/news/articles/1007/12/news070.html

10. http://www.flickr.com/photos/hakodx/1311105561/

11. http://www.flickr.com/photos/hakodx/1311105561/

12. http://itpro.nikkeibp.co.jp/article/COLUMN/20110222/357550/

13. http://www.flickr.com/photos/hakodx/1311105561/

15. http://appinventor.googlelabs.com/learn/setup/

16. http://appinventor.googlelabs.com/

20. http://groups.google.com/group/app-inventor-jp

21. http://atnd.org/events/17300