Visual Website Optimizer is an Easy to use A/B testing tool that allows marketing professionals to create different versions of their websites and landing pages using a point-and-click editor and then see which version produces maximum conversion rate or sales.
Ruby on Rails is an open-source web framework that is optimized for programmer happiness and sustainable productivity. It lets you write beautiful code by favoring convention over configuration.
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.