As a follow up to my Improving PPC Experiment – it's been 2 weeks since I made the updates to the page in question. Some facts/figures and info.nnI started channelling the particular ad block on 19th May. On the 27th May I updated the page's content, rewrote the text by hand and sourced some appropriate links. On 2nd June the updates were cached by Google. Using the cache date as the marker the PPC has improved by a 10% increase on average. Everyday for the past week the average per day has been above average for the start of the experiement which is good, and one day it was almost 100% increase.nnOf course this is only a short test and would really need a couple of months to give more accurate results. The amounts we're talking about are not majorly high either, so a 100% increase doesn't get into double figures per click either But at least it's a start that I can try and use across the site to perhaps improve the overall PPC by even 10%, which may mean an extra $10-20 per month.nnI've now changed the 4 link ad block to a 1 link block to see if I can force a higher PPC average. Of course I expect a lower CTR with this, but if it works out a higher daily average then it's still worthwhile. I'll leave that to run for a fortnight and report back again