From my blog: http://moz.com/rand/

Most testing platforms have this built in. If you need a generic one and some tips on statistical significance, Avinash’s post here has

good stuff: http://www.kaushik.net/avinash/excellent-analytics-tip1-statistical-significance/

Via: http://moz.com/rand/the-growth-of-web-marketing-fields/

From Conversion Rate Experts’ case study (which is definitely worth a read): http://www.conversion-rate-experts.com/crazy-egg-case-study/

CRE detailed their results with us here: http://www.conversion-rate-experts.com/seomoz-case-study/

Data and charts via: http://blog.tagman.com/2012/03/just-one-second-delay-in-page-load-can-cause-7-loss-in-customer-conversions/

ROI of page speed calculator: http://www.tagman.com/conversion-loss-calculator/

Data and charts via: http://blog.tagman.com/2012/03/just-one-second-delay-in-page-load-can-cause-7-loss-in-customer-conversions/

ROI of page speed calculator: http://www.tagman.com/conversion-loss-calculator/

Data and charts via: http://blog.tagman.com/2012/03/just-one-second-delay-in-page-load-can-cause-7-loss-in-customer-conversions/

ROI of page speed calculator: http://www.tagman.com/conversion-loss-calculator/

From Avinash Kaushik’s post: http://www.kaushik.net/avinash/tips-for-improving-high-bounce-low-conversion-web-pages/

Good place to find great designers: http://dribbble.com

Via Kyle Rush: http://kylerush.net/blog/optimization-at-the-obama-campaign-ab-testing/

Via Kyle Rush: http://kylerush.net/blog/optimization-at-the-obama-campaign-ab-testing/

The $300mm button story is a great anecdotal piece on this

http://www.uie.com/articles/three_hund_million_button

From this excellent infographic: http://www.zippycart.com/infographics/how-sales-messaging-affects-conversion-rates.html

From this excellent infographic: http://www.zippycart.com/infographics/how-sales-messaging-affects-conversion-rates.html

Zappos’ great videos and detailed images help make them a standout in the field of online retailing:

http://www.zappos.com/puma-future-cat-remix-2-ferrari-dandelion-black-high-risk-red

http://www.commoncraft.com/common-craft-video-dropboxcom-effective

→

Three must-read links on video for conversion: http://conversionxl.com/how-to-use-video-to-increase-conversions/, and the case study data for

eParty: http://www.internetretailer.com/2011/02/22/videos-boost-online-profile-eparty-unlimited and for Premiere Game Tables:

http://blog.treepodia.com/2011/03/ecommerce-video-roi-a-case-study/. I also highly recommend http://wistia.com which we use at Moz for video.

Great post on case studies and lessons learned: http://moz.com/blog/lessons-learned-from-21-case-studies-in-conversion-rate-optimization-10585

From Unbounce: http://unbounce.com/conversion-rate-optimization/544-conversion-rate-optimization-tips/