Google AdWords Quality Score Algorithm Update Now Live

The AdWords blog post says that the algorithm is now live and it will take about three to four days to fully propagate throughout the network.
If you have not enabled the quality score column, you probably should. To do that, just go down to your ad group level, click on the keywords tab on the top right, then select from the pull down menu the option to show the quality score. Here is a screen capture with arrows pointing to the relevant places but more on that at AdWords help.

Source taken from: http://www.seroundtable.com/archives/012481.html

What Quality Score does?
Your Quality Score reflects your keyword's CTR and the relevance of your ad text and landing page. Keywords with high Quality Scores are more relevant for users, more effective for your ad campaigns, and have lower minimum CPC bids.

Keywords can have one of three Quality Score states:
• Great: Your keyword is very relevant and your Quality Score needs no improvement.
• OK: Your keyword is relevant, but you can still benefit from a higher Quality Score.
• Poor: This keyword isn't very relevant to users and we suggest you replace it with a more specific keyword. If you would like to keep advertising with this keyword, we recommend optimizing by using more targeted ad text and improving your landing page content.