Complex sentence: The popularity of the Sean Cody web site has propelled many of its models into internet notoriety who have developed large fan followings (mostly in gay online communities), and some have made names for themselves after leaving the site.
Split into simpler sentences: The popularity of Sean Cody's Web site has propelled many of its models into Internet semi-stardom. Models featured on seancody.com have large fan followings, mostly in gay online communities, and some have made names for themselves after leaving the site.