Most importantly, we are replacing our static per-keyword Quality Scores with a system that will evaluate an ad’s quality each time it matches a search query. This way, AdWords will use the most accurate, specific, and up-to-date performance information when determining whether an ad should be displayed.

Your ads will be more likely to show when they’re relevant and less likely to show when they’re not. This means that Google users are apt to see better ads while you, as an advertiser, should receive leads which are more highly qualified.

Keywords no longer marked ‘inactive for search’

The new per-query evaluation of Quality Score affects you in that keywords will no longer appear as ‘inactive for search’ in your account. Instead, all keywords will have the chance to show ads on Google web search and the search network (unless you’ve paused or deleted them).

Keep in mind, however, that keywords previously marked ‘inactive for search’ are not likely to accrue a great deal of traffic following this change. This is because their combined per-query Quality Score and bid probably isn’t high enough to gain competitive placement.

‘First page bid’ will replace ‘minimum bid’

As a result of migrating to per-query Quality Score, we are no longer showing minimum bids in your account. Instead, we’re replacing minimum bids with a new, more meaningful metric: first page bids. First page bids are an estimate of the bid it would take for your ad to reach the first page of search results on Google web search.