There are many websites and applications where you can buy and sell dogecoin, but make sure the exchange you are using is trusted and secure. Here are some exchanges that are trusted in the cryptocurrency community:

• Coinbase
• Kraken
• 247Exchange
• Bittrex

• You can use it to buy goods and services, or trade it for other currencies (both other digital cryptographic currencies or traditional fiat currency like US dollars). By far the most popular use the Dogecoin however is for "tipping" fellow internet-goers who are creating or sharing great content. Think of it as a more meaningful "like" or upvote, with real value that can be used all across the internet.

Provably fair is an algorithm which can be analyzed and verified for fairness on the part of the service operator.
In a provably fair gambling system such as Dogepick.io, a player places bets on games offered by the service operator. The service operator will publish a method for verifying each transaction in the game. This is usually by using open source algorithms for random seed generation, hashing, and for the random number generator.
Once a game has been played, the player can use these algorithms to test the game's response to his in-game decisions and evaluate the outcome by only using the published algorithms, the seeds, hashes, and the events which transpired during the game.

A dogecoin faucet is a reward system, in the form of a website or app, that dispenses rewards in the form of a dogetoshi, which is a hundredth of a millionth DOGE, for visitors to claim in exchange for completing a captcha or task as described by the website. Dogepick.io is a free dogecoin faucet where you can claim up to 0.00055 DOGE for free every hour.