Apache is a free and open-source cross-platform web server software.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Dreamweaver is a development tool for creating, publishing, and managing websites and mobile content.
Lightbox is small javascript library used to overlay images on top of the current page.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.