LocalBitcoins allows users to communicate directly. LocalBitcoins is like the Craigslist for buying and selling Bitcoin.
Its sellers offer a wide variety of payment options and the built in escrow allows for greater buyer security.
Having said all that, since anyone can become a seller there is a lot more room for scammers on this platform.
However, prices are usually higher on this platform and you have to do your due diligence to avoid getting scammed.