I use Juno which I think is owned by NetZero. It's $9.95 unlimited per month. I have zero complaints. I will even say that again, zero.
My parrents just do email, no real web surfing. They create their letters off line, just connecting to the web to send them. They use access-4-free. The first 10 hours per month are free. They have minimal complaints with this company, although they do keep weird hours and are probably only trying to log on during non-prime time hours.