Google have moved the sponsored links on the right hand side of the search results page, much closer to the natural search results. This was spotted a few weeks ago and now seems to be in place when searching on any browser. This is going to impact mostly ads serverd on the right side of the search results and positions 3/4 to 6/7 as they will be much closer.In terms of how this will impact advertisers, the top 3 ad positions have not changed. The change will be noticebale on the rest of the ads, with hopefully higher CTRs. In this case we recomend that you run a few reports on your campaigns comparing data for the last few months and identify keywords campaigns were your CTR raised.