2.7 tools of the trade
• www.surveymonkey.com for creating online surveys
• Split test calculator www.usereffect.com/split-test-calculator
Sample size calculator:
• http://www.rogerwimmer.com/mmr/samplesizecalculator.htm
• http://www.rogerwimmer.com/mmr/mmrsampling_error.htm
• http://www.rogerwimmer.com/mmr/mmrsampling_error99.htm
• Internet Usage World Stats http://www.internetworldstats.com/
• Google Insights http://www.google.com/insights/search/
• Silverback usability testing software http://www.silverbackapp.com/