Well known bitcoin exchange. Sign up for an account, verify yourself and you can purchase a large number of bitcoins.
Works with every mobile phone or landline. No registration required. No credit card required. Can only be used three times a month, but has no maximum purchase limit.
LocalBitcoins.com In-person trading. Find someone in your local area who trades bitcoins for cash, and arrange to meet them in person. Run by LocalBitcoins.com.
Over-the-counter exchange. Find a direct seller online to buy and sell bitcoin with.
Bitcoinary.com's OTC Over-the-counter exchange. Find a direct seller online to buy and sell bitcoin with.
Over-the-counter exchange. Find a direct seller online to buy and sell bitcoin with.
