Google Paid-Search CPCs Rise As CTRs Decline

It's becoming a bit more expensive to run a search campaign. The average cost per click (CPC) rose on Google and Bing during Q3 2013, compared with the year-ago quarter, but fell on Yahoo. The average CPC on Google rose 3.5% 

Link de la noticia: 
http://www.mediapost.com/publications/article/211327/google-paid-search-cpcs-ris...