not sure how much of this applies top adult (there was a
discussion in the mainstream forum about whether there was even a difference) but you might want to have a look at this thread form the twist (formerly moreniche) forum about seo post panda/pengiun;
http://www.twistforum.com/topic/4057...-and-penguins/
but its really tough to know what really works these days. there is some complete and utter shit ranking on page1 for keywords relating to some of the brands I work with...