Articles - Articles are a great way to promote Adult sites, although you have to be careful on the content you post on these article websites. (
http://www.goarticles.com) is a pretty good website. (
http://www.ezinearticles.com) Takes 2-7 days for approval but is great exposure if you provide good quality posts.
Banners - When people read a book with pictures in it, what's the first thing their eye catches? The banners. Almost all Affiliate programs I've been associated with provides some banners for your websites/posts.
Blogging - (
http://www.blogger.com) The easiest blog to set up - write a review of your affiliate program and then ping it at (
http://www.pingomatic.com) to get it picked up by the search engines quickly.
Press Release - While this one may not be such a good option with Adult content, it can still be done (
http://www.PRweb.com) There's free options and you can also pay them to release an article for you. If you pay them $80, they will guarantee that your press release is picked up by all major search engines, potentially sending you thousands of visitors
Opt In Email - This is crucial to online success. No list is too small or useless. Every chance you get, BUILD THAT LIST!
Adwords - Using a PPC account from Google Adwords, Overture, or many others, you can easily generate income. If you're a newbie though.. I recommend running.. FAR FAR away from Adwords, because it is evil if you don't know what you're doing.
*Some Adwords Tips*
Put negative keywords in there like -free
You don't want people who aren't willing to purchase something.
If you have a lot of clicks and no sales.. reduce your CPC by .03
If you have a lot of clicks and a lot of sales.. increase your CPC by .03
Always do SPLIT TESTING!
This is where you create two different Ad-Groups with different context and keep the one with the higher CTR%