Dogecoin is a peer-to-peer electronic payment system based on the popular 2013 meme of the Shiba Inu dog. It was a fork of Luckycoin, which was itself a fork of Litecoin. The coin uses a PoW script mining algorithm similar to Bitcoin; however, while Bitcoin has a limited number of coins, there is no limit to the number of Dogecoins which can be created. The current rate of Dogecoin creation is over 5,000,000,000 coins a year.
Dogecoin is one of the oldest altcoins in existence, and for that reason they have a relatively large community. The reddit page has about 90,000 shibes (the group name for their community members).
Dogecoin is an excellent coin to use for micro transactions and is commonly used for tipping on articles. The coin is a sort of self-proclaimed “joke coin” which has gained a lot of popularity. This video is a good indicator of the lighthearted nature of the community as a whole.