JavaScript libraries
jQuery The Write Less Do More JavaScript Library

UI frameworks
Powerful extensible and feature packed frontend toolkit Build and customize with Sass utilize prebuilt grid system and components and bring projects to life with powerful JavaScript plugins

CDN
The recommended free CDN for Bootstrap Font Awesome Bootswatch and Bootstrap Icons

SurveysWidgets
Key Survey provides the simplest to the most complex enterprise survey and questionnaire tools Let our online survey software guide you through the process