AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Google Analytics is a free web analytics service that tracks and reports website traffic.
PHP is a general-purpose scripting language used for web development.
Sucuri is a cybersecurity company that provides website security solutions and services.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.