Links

News
https://cryptocalendar.pro/          cryptocurrency coin upcoming events

https://cointelegraph.com/

https://coinspectator.com/          news from various sites and blogs

https://cryptopanic.com/          the same

https://www.coindesk.com/

Forums
https://bitcointalk.org/index.php          huge forum with separate BTC and altcoin threads, announcements and speculations

http://boards.4chan.org/biz/catalog         maybe the biggest shithole on internet but very informative sometimes

https://www.reddit.com/r/CryptoCurrency/

https://coingossip.club/#r_cryptocurrency      gossip summary from reddit and 4chan/biz, a graphical representation of what is currently being talked about


Guides & tools
https://coinmarketcap.com/   

https://coincap.io/          coinmarketcap alternative

https://getcrypto.info/          learn more about a certain specific cryptocurrency
 
https://www.anythingcrypto.com/

https://www.coiniverse.info/          various crypto tools and signals

https://coinscanner.co/          fastest cryptocurrency price search

https://www.blockfolio.com/          mobile application for complete cryptocurrency management

https://www.drakdoo.com/          mobile charts, notifications and alerts

https://altpocket.io/          altcoin portfolio tracker


Markets & exchanges
https://www.coinbase.com/join/5a7517c627bf8604c16e5947

https://www.gdax.com/

https://www.binance.com/?ref=25920125

https://localbitcoins.com/

http://upcoin.com/?ID=35316c87

https://bittrex.com/           nice exchange with more altcoins than Binance

https://www.kraken.com/

https://shapeshift.io/#/coins          buy and sell between various digital assets

www.changelly.com          exchange cryptocurrency