I use wikipedia all the time. I thoroughly enjoy the information. I think it is a great of example of what is good about the internet. A community of people donating the time and knowledge to betterment of us all. Like any source of information you must be a critical thinker and verify its validity, yet I find it to be very good for the most part. I would consider being critical if I was paying to use the service. I find it unreasonable to be too critical of something that is free.