Guest blogging is on rise as everyone consider it as organic method of getting backlinks. spammers and old link builder are already entered this market. Matt Cutts has expressed their view on guest posting.
Matt cutts explained that all blog post which are not related to niche theme or off topic the blog, and linked with rich text keywords are considered as spam and such guest post will be penalised. Matt Cutts say that true or real blogger always write on a niche blog and on relevant topics. Google is going to penalize the excessive guest blog posts with same anchor text.
Post contributed by Aprajita Kohli editor of www.blogposting.co.uk. She is quite active in Blogger Outreach work