Website using the £ symbol on their website - meaning it may accept payment in this British currency.
Google+ platform websites integration using the Google+ platform tag.
Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface.
A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.
Any offered product or service. For example: a pair of shoes; a concert ticket; the rental of a car; a haircut; or an episode of a TV show streamed online.
A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred".