If you are considering creating an adult web site, or are already an adult webmaster, you should:
Understand legal issues surrounding adult web content
Work with a web hosting company specifically geared to adult sites
Understand the taxonomy of adult content niches
Create, commission, or license content, or obtain it from site sponsors
Provide content that caters to specific niches and interests
Forge relationships with a few good adult sponsors
Display ads from these sponsors that are relevant to your traffic
Get listings in adult directories
Consider advertising via the Google AdWords program to drive traffic
Syndicate one or more feeds based on your site content
Submit your syndication feeds to specialty adult feed aggregators
Create an initial (and subsequent) press release
Submit your press releases to adult-industry press release services