Bittrex is used by many cryptocurrency users for trading. Take a look at the tutorial to find out how. See other posts about trading
Smart contracts were first released on Ethereum network. Other cryptocurrency networks, copied the smart contract functionality. So, it is important for the cryptocurrency user, to know about them.
Many people find out about Bitcoin nowadays. So, there is a great demand for information about getting involved. In the video you can see one of the many ways to buy Bitcoins. When you buy Bitcoins, you need a wallet to keep them. Online wallets are easy to use because you can have your Bitcoins available. StrongCoin is a good solution, because it is a hybrid wallet, that encrypt the private keys with your password. So, you are the only one to have them and they are derypted on your browser. See the StrongCoin Wallet
TenX supports blockchain assets across multiple blockchains. TenX currently supports Bitcoin, Ethereum, Ethereum ERC20 Tokens (DGX, REP, TRUST,ANT, etc.), Dash - many more are coming. The platform connects assets and businesses on blockchains to the real-world in a decentralized manner. Developers can develop security smart contract modules, businesses can connect their users and usecase to real-world payments.
BitConnect Coin is an open source, peer-to-peer, community driven decentralized cryptocurrency that allow people to store and invest their wealth in a non-government controlled currency, and even earn a substantial interest on investment. Gain financial freedom with a secure and practical alternative to centralized banking.
ZCash has two types of addresses. The one is transparent, like Bitcoin's, and the other is private. With the private address, data is hidden on the Blockchain. The user can have both, and use any address that fits the scope of the transaction.