I have recently launched (in Sept 2010) a healthcare site/blog and am looking for anyone interested in doing guest blogs about any area you are passionate or an expert about. My site is a series of 4 blogs (healthcare/parenting, travel/expat, my journey (which is entrepreneurship/self development) and fashion/beauty. I also answer medical questions and do case reviews via email for free (for now!)
As is the case with most start up sites, I can only offer you a backlink to your site as payment for your blog and will list a short bio about you and credit you as the author to the blog.
Happy Holidays to all!