TradingView: A website which includes different charts and tools to conduct technical analysis.
Blockfolio: An application to monitor prices and set up price alerts. Available for iOS and Android devices.
In addition to the weekly Rain newsletter, the following websites can help you stay updated on the latest news in the cryptocurrency industry:
Coindesk, CoinTelegraph, news.bitcoin.com, CCN, Bitcoin Magazine
NOTE: It is important to keep in mind that buying, selling, or holding cryptocurrency carries substantial risk of loss. Accordingly, you should carefully evaluate whether buying, selling, or holding cryptocurrency is appropriate for your financial situation.