Quick reference Sites
Coinmarketcap.com lists the top alternative currencies which can be sorted by value and also provide additional information on where to purchase and current prices.
Blockchain.info provides the ability to check the balance of any Bitcoin address and transactions that are on the bitcoin blockchain. The site also contains a popular online wallet (although a hardware wallet is preffered)
https://twitter.com/ (add $ infront of code eg $BTC in searches)
Paper Wallet Generator.