I can allow free guest posts on a health niche site. Your articles must be related to health niche only. Site was a PR3, but because i wasn't doing any link building for a while, now after PR update, it is a PR2. However it's more than 2 years old and DA is above 20 also it gets about 700-1000 unique visits each day. PM for more details. No links to pharma sites! Also your link won't stay for a lifetime, i can allow max 2 months completely for free. I can guarantee that from each article your link gets at least a couple of thousands visitors within these 2 months (did that before and site owners received that amount without a problem). And you can submit as many articles as you wish! each link will get 2 MONTHS for free.