Any ideas why I have to start suddenly paying more?
Have you checked the status of the Quality Score for each keyword? That is most likely what is responsible for the increase in Minimum Bid. You should read up on Quality Score here on Webmasterworld as it'll not only improve your campaign performance but save you time and hassle. I've also seen an increase in Min Bid lately.
Have you checked the status of the Quality Score for each keyword? That is most likely what is responsible for the increase in Minimum Bid. [...]
Agreed.
Paulie555, a short time ago I posted with a bunch of resources to help understand Quality Score - in another thread in this same forum. You'll find it here:
[webmasterworld.com...]
AWA
Google, when it doesn't have keyword performance history, it just gives Q.S based purely on ur selected keywords, ad text and landing page. The CTR and other factors are not taken into account. Also for any campaign, as soon as it is setup, the Google system gives better ad positions for your ads initially. Once the system has substantial data (which might take 2-3 days or a week some times) it redefines your Q.S and minimum bids. This might be the reason why your min bids shot up to 5 from 1. Initially, the system might not have had enough data to compute your keywords exact Q.S. But given a couple of days, it recalculated and increased your min bids to 5.