You can communicate with psychics through psychic chat rooms online, either an open one available to the general public, or a restricted one set up so you can have a private reading. More rarely, you can have a reading via webcam where you can watch the psychic doing the reading through a video camera attached to a computer transmitting the information online. This can be a good idea as you can see a real person rather than interacting with a faceless machine. Another option is to have email psychic readings, this gives you a record of it which is easily referred to in the future. Some give you a free sample reading so you can see what you are getting. This can take the form of a free ten minute chat or an abbreviated form of the reading, for instance for horoscopes or chakra tests.
Most psychic websites have a disclaimer saying that readings are for entertainment value only and should not be taken seriously. There are also sites that do free online psychic readings if you want to see what is available committing to purchasing an online psychic reading.