Other than Localbitcoin and forums, you can also check out trading platforms (I am surprised that you ask this question). If you are trying to exchange it for your local currency (which somehow is not "popular"), you can try a Google search for "[country name/currency name] to Bitcoin". I am sure you will be able to find some trust able trading sites that allow you to exchange Bitcoin into your local currency.
Trading platforms such as Kraken and OKCoin act as middleman. If the company is big and have good reviews, you can trust them with your Bitcoin on their site. The exchange automatically happen and the trading company will handle all the cares for you.
I am really surprised that you ask this kind of question. Or maybe hashkey and me misunderstood your question and take it as a simple question.
I manage a website about trading crypto currency, and regularly people ask me where they can buy bitcoins. Somehowe they have to pay very high fees and I like to facilitate them selling bitcoins for a fair price. On this forum I have read these kind of requests for bitcoins too.
So far I have helped a few people selling bitcoins to them, but the last time I was almost scammed using PayPal. So I am wondering how other people sell bitcoins to people they dont know.