ASP.NET 2.0 and SEO?

    I've been somewhat surprised by the lack of traffic to one of my sites. I did a little research on ASP.NET 2.0 and SEO and noticed that in this article on WWWCoder, Patrick Santry suggests that using PostBacks is very detrimental to SEO as the search engine spiders "don't click buttons." The rewriting philosophy I was a little more familiar with, but was wondering if any of you had read any good articles on SEO especially when utilizing dynamic pages, postbacks, etc.