Coin Central
The most trusted site for cryptocurrency and blockchain news and information since 2017. This site leans toward aggressive growth-oriented investors comfortable with medium risk.
Legal Advisory
This Thomson Reuters site indexes US cryptocurrency regulatory movements. Fairly objective, it links to current news and often features concise definitions of important new terms and jargon.
Coin Desk
One of the oldest cryptocurrency-focused sites, Coin Desk tends to focus on institutional investing, US corporate adaptation, and emerging international trends. Opinions tend to be conservative.
Coin Market Cap
A comprehensive site featuring current cryptocurrency tickers. Also tracks relevant exchanges, indexes, wallets, apps, and crypto products. Identifies trends and answers broad questions with a data-first focus.
The Basics
Wikipedia page on cryptocurrency. Has an excellent yet concise history of cryptocurrency, and a well-maintained index of basic terms and concepts which should be considered required reading.
Messari
A site focused on advanced research and analysis of cryptocurrency with both free and paid options. The focus is math and science, with attempts to gauge public awareness, sentiment, and demand.