GROUP_CONCAT query

Hi all, I sometimes find the MYSQL manual very difficult to understand- perhaps I am alone in this. I am wanting to do the following, and I think I need to use GROUP_CONCAT in my query. I have a table of webstats for my site with columns for IP, Hostname, referer website etc and I want to show the occurences of the the same IP, hostname and referer website and how many times. How do I do this? My normal query would look like this? $query = "SELECT id , clicks , os , browser , ip , port , host , country_code , country_name , cookies , crawler , referer_website , qs , datestart , dateend , timestart , timeend , history , fulltimestart , daystart , fulltimeend , dayend , timelength FROM webstatstable" I have tried doing SELECT referer_website, GROUP_CONCAT(referer_website) FROM 'webstatstable' but that doesn't seem to work. Any ideas?