Does Google take action on spammy guest blogging activities?

Currently, guest blogging is the favorite activity of webmasters for link acquisition. Due to its easy nature, lots of spammy activities are going on like article spinning etc. Is Google going to hammer websites for links acquired by guest blogging? Nandita B, India Read more about link schemes: support.google.com Have a question? Ask it in our Webmaster Help Forum: groups.google.com Want your question to be answered on a video like this? Follow us on Twitter and look for an announcement when we take new questions: twitter.com More videos: www.youtube.com Webmaster Central Blog: googlewebmastercentral.blogspot.com More resources for webmasters: www.google.com