A majority of blogs in any industry will accept guest posts…if the post is exclusive and filled with high quality content.
You provide value (a great article) in exchange for the link back to you…and a chance for their subscribers to get to know you.
Why does this work? Because I’ve yet to meet anyone who publishes TOO MUCH CONTENT. Nobody says, “Wow, we sure have too much content around here. We don’t want anymore.”
They’re always looking for more content. If you can provide high quality content that matches their theme and helps their subscribers, you’ll often find this a way to tap into their traffic.
Why are the majority of guest posts rejected? Because they’re simply promotions for their product or their site. NO ONE wants you promotional piece, but they want your content piece. If you wouldn’t think of sending the article into a magazine on the subject, don’t suggest it to the blogger either.