Over on my SEO Naturale consulting site I added a post about the little blue marker you may be seeing on Google SERPs. The little arrow or triangle was added to help with keyboard navigation on Google (which few people will probably use). The problem is that it will likely cause false paid search clicks, poor user experience, and extra weight to the number 1 listing in Google (whether it be paid or organic).
Read the full article to discover: Google Blue Arrow Issues
