simple stat counters

After doing some investigation for a client, on which hit counters are the easiest to use and implement on a simple website, I found that the following hit counters were some of the easiest to implement and are all free. Although I would use more comprehensive stat counters for more professional sites;

http://www.statcounter.com/free_hit_counter.html

http://www.freestatscounter.com/free-counter.asp

http://www.hit-counter-download.com/