Trish is talking about off leash DOG parks, not people parks. The problem with dog parks is the total lack of knowledge or control over loose dogs, not all of whom are puppy friendly and their potentially unaware owners - and for a puppy that is not fully vaccinated there is a high risk of disease. While I'm on this, it's also a good idea to always bring your own water and dish for your dog and not let them share bowls with other (unknown and possibly unhealthy) dogs.
Going to a department store parking lot, strip mall, hardware store, children's playground, soccer field, etc. - and of course, training classes - are all excellent places to socialize your puppy!
