I've put together a simple demo of various Google Apps Script features, by building an article reading list that uses a spreadsheet to store article URLs, and a task list to remind me that there are things to read. It's based on a great article "Integrating with Google APIs - Creating a simple reading list" which shows the use of Spreadsheet Services and the Tasks API from the new APIs Services.
I've expanded upon it to show UiApp service features, the use of UrlFetch to access the early Google+ API to retrieve lists of articles pointed to by people on Google+, and various other bits and pieces.
It's for a talk at Manchester Google Technology User Group (GTUG).
Enjoy!
