BitcoinWisdom was, to my knowledge, the very first Technical Analysis service for the crypto industry. They present live trading data for the most popular markets, including order books and trade histories. You can draw on the charts and use a variety of powerful indicators to help you plan out your trading strategy. The application is monetized through banner ads, but if you use an ad-blocker, you're good! The reason I am deducting two stars is because the website hasn't improved in almost 2 years. The UI is clunky and stale, and because of it, I believe the majority of traders and influencers have moved their TA over to TradingView or Coinigy. Overall: a very powerful service, but seems to be losing traffic to its more active competitors.