Search engine optimization companies have started targeting Google’s +1 feature–you can now pay companies to “+1” your website. This isn’t the first time we’ve heard of companies “selling social.” In the past, we’ve seen companies that have sold packages of Facebook friends and Twitter followers–for a price, of course. Price start from 0.20 cent per Google +
Buying Plus Ones can help your site out by showing Google that the content featured on it or the page being Plussed is of value to real people and not spammy. Similar to the facebook LIKE, the Twitter FOLLOW or Digg’s DIGG it adds a human aspect to the ranking algorithm used by search engines and social bookmarking sites
http://www.pcworld.com/article/236603/seo_peddlers_see_value_in_googles_1.html