hello all! I am looking for the best way to integrate 4 sites. I have 5 but one is free. I want the database to be shared so that if they are members of two sites they can use the same username and password for all and it would be an upgrade rather then having to log into each site. The sites are separate but really branch off of the free site. All sites share one database for content. I really do not think that having a license for each site is necessary. Thanks