VWO - Use VWO to tweak, optimize & personalize your website with minimal IT help.
Simple Contacts - Contact lens prescriptions from home
Optimizely - A/B testing you'll actually use.
Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Crazy Egg - Through Crazy Egg's heat map and scroll map reports you can get an understanding of how your visitors engage with your website so you can boost your conversion rates.
FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts