Search Engine Roundtable has reported the fixing of Google AdWords CPC Price Gouge Bug. The bug pushed up minimum bids to unnatural highs for some keywords. Webmasterworld members have reported relative normalcy over the weekend.
my accout is 75% or more back to normal.
The problem with singular/plural keywords has been resolved for me. In my situation this appears to be a technical issue with adwords which is now resolved. I still have some keywords disabled requiring high min bids to reactivate but these really are poor performing keywords.
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