The document discusses various tools for modern web application development including JavaScript frameworks like Angular and Backbone, CSS preprocessors like SCSS and LESS, templating languages like Jade and Haml, module loaders, performance optimization tools, documentation tools, and continuous integration tools. It also covers techniques for structuring code and CSS including OOCSS, BEM, and SMACSS methodologies. Finally, it discusses scaffolding and build tools like Yeoman, Grunt, and Bower for automating workflows.