The aim of this paper was to give a more detailed comparison of two online encyclopedias - Wikipedia and the Encyclopedia Britannica. In today’s world where information is available practically everywhere, the popularity of Wikipedia’s free online encyclopedia has come to the fore. An open, free page that allows anyone to become an independent editor, and a page that gets bigger and bigger every day. On the other hand, there is the oldest general encyclopedia in English whose first volume was printed as early as 1768 in Edinburgh, Scotland. It is an encyclopedia that has long held the status of the ultimate encyclopedia. An encyclopedia that represented prestige in society, and an encyclopedia that one should have in possession if he wanted to have access to the most up-to-date information from the world. An encyclopedia that the technological changes that soon took place in the world, starting with the 80s with the development and spread of PC and hard drive technology and the rapid development of the Internet in the 90s and 2000s, forced to reject its print edition, and made it switch to a fully online edition (2012) to stay relevant in the world of social media and high speed internet. These are two encyclopedias that differ from each other greatly, and those which many battles have been fought over the relevance of content. This paper sought to present as much information as possible that can help compare these two encyclopedic giants, from showing their history, to comparing them using the results of previous research and using texts on photography technology to make another in a series of comparisons.