36 Interesting Ways to Use Google Docs in the Classroom (this Google Presentation is heavy on uses of Google Spreadsheets)
https://docs.google.com/present/edit?id=dc8wnh53_290dg2j2fgt
It was found on the Tom Barrett's awesome Web site Ideas to Inspire (http://www.ideastoinspire.co.uk)

Practice Google Spreadsheet
http://docs.google.com/demo/edit?id=scADud2FxXy0Yu3hqFEdyQkGO&hl=en&dt=spreadsheet#spreadsheet

From Eric Curts, North Canton City Schools Technology Director
Apps Users Group
http://www.appsusergroup.org/resources/google-spreadsheets
http://www.appsusergroup.org/ideas-for-use/google-spreadsheets

Google Spreadsheet Motion Chart - Use of a Gadget
http://support.google.com/docs/bin/answer.py?hl=en&answer=91610

Link to video on Google Spreadsheet from Ask.com
http://video.about.com/spreadsheets/Using-Google-Spreadsheets.htm