Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
GiveSmart is an event fund gathering technology that offers customisable event size, mobile bidding, text-to-donate, enhanced dashboard and reporting, seating arrangement, and more.
Open Graph is a protocol that is used to integrate any web page into the social graph.