The official Cook Islands Tourism Board has a new website at:  There is a great deal of information here for people considering a trip to the Cooks.  All of your basic questions can be answered here.  


In addition, there is the Cook Islands Tourism Industry Council which works closely with the Tourism Board. The link lists members who are accredited to the Council. It should be pointed out, however, that many accommodation providers are not members of the Council and nevertheless have a good reputation.