A ideia dessa lista é fazer uma relação de serviços úteis que você usa ou recomenda:
Análise gráfica:http://bitcoinwisdom.com - gráficos de cotação
http://www.coinorama.net/ - gráficos de cotação com crossmarket chart
https://bitcoinity.org/markets - gráficos de cotação mbtc com muros de compra e venda
http://bitcoincharts.com/ - site antigo com gráficos estáticos
Reserva e poupançahttp://bitreserve.org e
https://coinapult.com/ (panamá) - reserva de valor em fiat em diferentes moedas e metais (USD, CHF, XAU etc)
http://bitfinex.com/ (hong kong) - permite emprestar/tomar coins por um período de tempo com um rendimento baixo (porém > poupança tradicional)
https://bfxdata.com/ - análise de taxas de swaps, futuros, preços etc
Brasil:http://bitbolsa.tk - oportunidades de arbitragem, ordens
http://bitvalor.com - análise de mercado (preços, ordens, volume etc)
Redes de confiança:https://bitcoin-otc.com/ - rede de confiança onde você encontra pessoas para fazer transações fora das exchanges.
Exchanges:http://www.coinbr.nethttp://www.foxbit.com.brhttp://www.bitcointoyou.comhttps://www.negociecoins.com.brhttps://www.bitinvest.com.br/https://www.bleutrade.com/https://www.flowbtc.com/Empréstimo:http://btcjam.comhttp://bitlendingclub.comCartão de débito:http://www.xapo.comEmpregos ou freelas:https://coinality.com/http://angel.co/bitcoin/jobsSocial:https://bitcointalk.org/index.php?board=29.0 - Forum BitcoinTalk
https://www.facebook.com/groups/btcbr/https://www.reddit.com/r/BrasilBitcoin/https://www.reddit.com/r/obitcoinNoticias Bitcoinist http://bitcoinist.net/ - You can usually find interesting stories on here that don't get covered elsewhere.
Brave New Coin - Quickly growing firm out of New Zealand, focused on providing high quality bitcoin and altcoin news and research. They run the bitcoin.info website as well.
Coin Desk - Have been around for quite some time.
Coin Fire - The way these guys took on the Paycoin debacle earned my respect, and more importantly a bookmark in my browser.
Coinsetter Industry News - News arm of the NYC based bitcoin exchange, more geared towards traders and bitcoin professionals.
Coin Telegraph - Probably the second largest bitcoin and largest altcoin source of news. Their artwork is awesome BTW.
IHB - They've broken some major stories and have a powerhouse of a team behind them.
NewsBTC - A forex-esque news portal for all things bitcoin.
