Ok, I have some Ether in my wallet. Where can I sell and change it to fiat currency?
Sell in exchanges
Deposit the funds into an exchange and start trading. Most exchanges will require you to open an account first and pass the KYC before allowing you to deposit or withdraw to fiat currency. The more popular ones are as below:
OTC (over the counter)
If you do not want to use exchanges you can sell directly to someone in exchange for cash. But beware of scammers and thieves when you do OTC. An example of this is LocalBitcoins. Unfortunately this service is not yet available for Ethereum.
This option is currently very popular as there is no KYC checks and can be used to swap between crytocurrencies. Shapeshift is one such service.