A good source of notes are forums where you can interact with other folks like yourself. These online communities are also a good source of feedback from people who have successfully found online employment with dependable companies. There are also consumer protection sites that can give you true notes on various sites.
Never commit yourself to a society without asking questions. You should always be able to communicate with them simply. The genuine ones are eager to be known and be easy to reach. The shady ones prefer anonymity and try to be hard to trace. Information and easy to obtain track records of an honest, true business is readily available through the internet and other sources.