Did you read about the statement of Matt Cutts to the guest blogging topic?
“So stick a fork in it: guest blogging is done; it’s just gotten too spammy. In general I wouldn’t recommend accepting a guest blog post unless you are willing to vouch for someone personally or know them well. Likewise, I wouldn’t recommend relying on guest posting, guest blogging sites, or guest blogging SEO as a linkbuilding strategy.”
Google want to see high quality – but how will you able to control quality? The solution is easy: Don’t guestblog anymore or provide guestblogging for your blogs any longer, instead buy yourself directly in high quality blogs or offer your own high quality blog to your price and your conditions. VISIT a new concept of online marketing: on http://adysite.com you are able to offer any online space, people can apply with their content and you can accept or decline the request! Free to use without any obligations, check out the video: