We compiled list of useful tools and services. 
https://cryptowatch.net/ - 9 TradingView charts at one page.
https://datamish.com/ - Various charts.
https://bitcoin.clarkmoody.com/ - Good tickers for Bitcoin.
https://blockchainwhispers.com/bitmex-position-calculator/ - Longs vs shorts.
https://aggr.trade/ - Futures/Derivatives aggregator ("must have" for trading)
https://chrome.google.com/webstore/detail/aggrtrade/lllmeoceebooppendmllkpmlcebpgohh - Same thing but on any page ( Futures/Derivatives aggregator on any browser page. )
https://www.tensorcharts.com/ - Chart with heat map.
http://charts.woobull.com/ - Statistics chart.
https://data.bitcoinity.org/markets/books/USD - Combined order book.
https://coinfarm.online/ - Bitmex longs and shorts.
https://messari.io/ - Here you can check cryptocurrency projects with various filters.
https://coinalyze.net/ - Good alternative to TradingView.
https://info.binance.com/ - Great alternative to Messari.
https://www.coingecko.com/ - Alternative to CoinMarketCap.
https://www.cryptocompare.com/ - Alternative to CoinMarketCap.
http://coinmarketcal.com/ - A website that list upcoming or past events about cryptocurrency.
https://coindar.org/ Alternative to CoinMarketCal.
https://www.lookintobitcoin.com/charts/ - Good statistical charts (BTC).
https://bitcoinwisdom.io - "This website also the best for charts."
https://corn.lol/ - Aggregator.
https://whale-alert.io/alerts - Live tracking of large crypto transactions from and to exchanges.
https://edgewonk.com/ - Your trading journal.
https://tradinglite.com/ - Awesome heat maps (not public, you can sign up for early access).
www.tuned.com - Full stack Automated trading creations, testing, execution, reporting.
https://bitcoinvisuals.com/ - Full info about bitcoin, any stats.
https://www.skew.com/dashboard/bitcoin-futures - Bitcoin derivatives stats.
https://deadcoins.com/ - Coins that you don't want to buy.
https://coin360.com/ - Quick market overview.
Portfolio Tracking.
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https://cointracking.info/ - Crypto portfolio tool.
Crypto Market Cap - (Phone) Crypto tracker, Alerts, News = Best App for free trading portfolio.
Blockfolio - (Phone) Same as Crypto Market Cap app but still alike Crypto market cap because it's completely free.
https://coinstats.app/ - Portfolio control.
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Trading Terminals.
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https://cryptowat.ch/ - Good web terminal, comfortable charts.
https://www.trailingcrypto.com/ - Another good trading terminal.
https://3commas.io/ - Trading terminal and a lot nice features.
https://tigertradesoft.com/ - My favorite trading terminal (14 days free trial).
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Crypto news aggregators.
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https://cryptopanic.com/
https://cryptocontrol.io/
https://www.cryptoviral.com/
https://coinspectator.com/
______________________________________________________________________________
If you know useful services or tools, post it below
https://cryptowatch.net/ - 9 TradingView charts at one page.
https://datamish.com/ - Various charts.
https://bitcoin.clarkmoody.com/ - Good tickers for Bitcoin.
https://blockchainwhispers.com/bitmex-position-calculator/ - Longs vs shorts.
https://aggr.trade/ - Futures/Derivatives aggregator ("must have" for trading)
https://chrome.google.com/webstore/detail/aggrtrade/lllmeoceebooppendmllkpmlcebpgohh - Same thing but on any page ( Futures/Derivatives aggregator on any browser page. )
https://www.tensorcharts.com/ - Chart with heat map.
http://charts.woobull.com/ - Statistics chart.
https://data.bitcoinity.org/markets/books/USD - Combined order book.
https://coinfarm.online/ - Bitmex longs and shorts.
https://messari.io/ - Here you can check cryptocurrency projects with various filters.
https://coinalyze.net/ - Good alternative to TradingView.
https://info.binance.com/ - Great alternative to Messari.
https://www.coingecko.com/ - Alternative to CoinMarketCap.
https://www.cryptocompare.com/ - Alternative to CoinMarketCap.
http://coinmarketcal.com/ - A website that list upcoming or past events about cryptocurrency.
https://coindar.org/ Alternative to CoinMarketCal.
https://www.lookintobitcoin.com/charts/ - Good statistical charts (BTC).
https://bitcoinwisdom.io - "This website also the best for charts."
https://corn.lol/ - Aggregator.
https://whale-alert.io/alerts - Live tracking of large crypto transactions from and to exchanges.
https://edgewonk.com/ - Your trading journal.
https://tradinglite.com/ - Awesome heat maps (not public, you can sign up for early access).
www.tuned.com - Full stack Automated trading creations, testing, execution, reporting.
https://bitcoinvisuals.com/ - Full info about bitcoin, any stats.
https://www.skew.com/dashboard/bitcoin-futures - Bitcoin derivatives stats.
https://deadcoins.com/ - Coins that you don't want to buy.
https://coin360.com/ - Quick market overview.
Portfolio Tracking.
______________________________________________________________________________
https://cointracking.info/ - Crypto portfolio tool.
Crypto Market Cap - (Phone) Crypto tracker, Alerts, News = Best App for free trading portfolio.
Blockfolio - (Phone) Same as Crypto Market Cap app but still alike Crypto market cap because it's completely free.
https://coinstats.app/ - Portfolio control.
______________________________________________________________________________
Trading Terminals.
______________________________________________________________________________
https://cryptowat.ch/ - Good web terminal, comfortable charts.
https://www.trailingcrypto.com/ - Another good trading terminal.
https://3commas.io/ - Trading terminal and a lot nice features.
https://tigertradesoft.com/ - My favorite trading terminal (14 days free trial).
______________________________________________________________________________
Crypto news aggregators.
______________________________________________________________________________
https://cryptopanic.com/
https://cryptocontrol.io/
https://www.cryptoviral.com/
https://coinspectator.com/
______________________________________________________________________________
If you know useful services or tools, post it below
This is really useful, it will probably help alot since we have more and more crypto traders coming into the system. I even came across some links I don't know for years now and also get to see some I have already came across.