http://www.speech-topics-help.com/demonstration-speech-topics.html

http://www.studyguide.org/cm101_demo_speech.htm

http://www.speech-topics-help.com/demonstrative-speech-outline.html

http://www.best-speech-topics.com/demonstration-speech-topics.html

http://www.better-english.com/grammar.htm

http://web.archive.org/web/20061129102913/www.bbc.co.uk/skillswise/words/grammar/sentencebasics/whatisasentence/game.shtml