Bitcoin to USD Converter
https://coinmill.com
Check Balances in any wallet:
Blockchain.info
Easiest Starter Exchange:
Coinbase
Exchanges:
Paxful.com may have possibilities. Allows buying Bitcoin with gift card. Fees set by seller; fees seem high. Not sure how it works. Buyer sets terms.
Note: CoinMama is available in some US states, but not for Georgia residents, so far.
Medium - an interesting forum for all topics, including art, philosophy, Bitcoin articles, etc.
(Membership: Facebook login)
https://medium.com/blockchain-for-grandma/round-4-grandma-versus-bitcoin-f39ca4d2112b