Some popular sites for trading cryptocurrency and cryptocurrency investment platforms include:

1. Binance: One of the largest cryptocurrency exchanges in the world, offering a wide range of cryptocurrencies for trading.

2. Coinbase: A user-friendly platform for buying, selling, and storing cryptocurrencies like Bitcoin, Ethereum, and Litecoin.

3. Kraken: A secure and regulated cryptocurrency exchange with a variety of trading pairs.

4. eToro: A social trading platform that allows users to follow and copy the trades of experienced cryptocurrency traders.

5. Robinhood: A commission-free trading platform that offers cryptocurrency trading in addition to stocks and ETFs.

As for automated crypto trading, some popular platforms include:

1. 3Commas: A crypto trading bot that allows users to automate their trading strategies across multiple exchanges.

2. HaasOnline: A crypto trading bot platform that offers advanced trading strategies and technical analysis tools.

3. Cryptohopper: An automated crypto trading bot that allows users to create and backtest their own trading strategies.

It is important to do thorough research and due diligence before using any trading platform or automated trading bot to ensure the security of your investments.
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