Wireframe.cc - Sweet and simple online wireframing tool.
Optimizely - A/B testing you'll actually use.
WireframeSketcher - WireframeSketcher is a wireframing tool for creating wireframes, mockups and prototypes for desktop, web and mobile apps. It's a desktop app for Mac, Windows and Linux, and a plug-in for any Eclipse IDE.
BEYABLE - Real-time personalization solutions for e-commerce & lead gen websites
Saola Animate - Easily create engaging HTML5 animations and interactive web content without coding skills
Enhencer - Enhencer is an auto-machine learning SAAS platform that helps e-commerce sites to predict customer behaviours and take actions accordingly