Naughty Neo

I am not sure about your experience level as an adult webmaster or as a blogger. So let me assume that you are not a newbie at both. That is, you know hot the adult affiliate programs work and you know what is blogging.

Building an adult blog is just like building a mainstream blog. Blogs have the SEO advantages due to the inbuilt ping feature and internal linking structure. More over if you use wordpress you have many plugins which will help you for SEO.

Unlike TGP (Thumbnail Gallery Posts) or MGP or TUBE site which depends upon large volume of traffic to make money, blogs aim at getting quality search engine traffic. If you have done TGP or gallery submissions you know that the typical conversion rate ranges anywhere from 1:500 to 1:5000. That is because most of the surfers are looking for free porn and they know how to get for free without paying a dime. Where as the search engine traffic will convert much better (for example 1:100 to 1:500). Your aim as a porn blogger is to get that search engine traffic, tease the surfer a bit and take him to the paysite (with your affiliate code of course) and make money. The key here is, not to give away too much free porn. That means never link to tons of free porn galleries from your blog. Show him a small 1 or 2 minutes video clip and tell them that the full video is inside the paysite membership area. Or show him couple of pictures and tell him that more pictures and videos are inside the paysite. If you can write stories, a sex story blog will work fantastic.
Unlike other type of sites blogs need to have text content to pull the search engine ranking as well as to keep the surfers coming back. But keep your post short (around 100-250 words) unless you are posting a erotic story.
And finally do not start a general porn blog. It is much easier to start a niche specific blog and succeed.