Virtual currencies
Wallets
You need a wallet to transfer currency from and to. There are two types of wallet: online and offline. Hosted or self hosted. You can recreate a wallet at any time if you know the following: a wallet id wallet public key a wallet private key (which is an encoded version of your passphrase)
wallets will give you a receiving adres, usually as a string as well as a QR code. Rhis is also the wallet id.
To safely store you wallet you need to print out the passphrase / private key seperately from the public key and then delete the files from your PC.
Online
https://www.omniwallet.org/ - also has a balance check https://blockchain.info/
Warning: online wallets and exchanges have been known to disappear and run with the money. They are convenient but there is a risk!
Self hosted
Bitcoin Armory doesn't work and requires you to download bitcoin core and the whole blockchain (which is +- 100GB!!!) Stay away from that!
Electrum Wallet works under linux mint and also has a mobile version.
Traders
mtgox the big bitcoin trader went bust and took all the money
Bitcoin to other virtual currencies
Bitcoin charts and statistics
coinwarz exchange and difficulty rates
blockchain (Only Bitcoin)
https://coinmarketcap.com/currencies/litecoin/
https://www.worldcoinindex.com/coin/litecoin
https://www.cryptocompare.com/coins/eth/overview
Virtual Currencies
Bitcoin BTC
Etherium
Zerocoin Anonymous currency
Dogecoin powers Jamaican bobsled team
How bitcoin mining works:
Hardware
ASIC
Flower Technology Orchid Scrypt miner
Guides to building a machine:
What does difficulty mean:
How difficult are litecoins?:
Mining profit calculator:
News
Regulation and crimes
BitInstant CEO Charlie Shrem Arrested for Money Laundering
Bitcoins legality around the world