C. Craigslist
Functioning as a huge classifieds database, Craigslist, which in recent years has taken steps to free itself of some of its seedier elements, gives its users the opportunity to look for and advertise a range of things, ranging from jobs to properties, in their local areas. A not-so-honourable mention goes to Chatroulette, frequently lampooned for the inappropriate conduct of its participants, whose webcam feeds are shared with other random users online at the tie, though like Craigslist, the site has recently taken steps to improve its public image, attempting to function as intended, allowing random individuals to become acquainted with one another.
D. Dictionary
A somewhat boring choice, but one that has made hefty dictionaries and thesauruses obsolete, offering both as free services, alongside a quotes database, word-related games, an encyclopaedia and a translator, all of which contribute to its status as an excellent all-around academic tool for English speakers across the world. Honourable mentions go to Dropbox, a cloud storage site that allows users to store their files and folders and view them on any other computer, and Digital Spy, one the UKs largest online entertainment communities, offering news and interviews on everything from television, music and games to comics and technology, in a manner quite similar to WhatCulture.