If you've held off on giving WidgetBucks a shot due to their CPC network only serving US and Canadian traffic then now is a good time to give them a try, as they have just announced that they are expanding their CPC program to include the UK with other European traffic also coming on line soon.

Starting today in the United Kingdom, when publishers serve WidgetBucks ad widgets on their sites, visitors based in the UK will now see a short-duration CPM display ad followed by a CPC shopping widget featuring UK-based merchants and products listed in British pounds sterling. (see a sample UK screen shot here)

The CPM-CPC hybrid gives publishers two revenue streams from the same ad widget instance. Before today, only CPM (cost-per-thousand impressions) ads were served to visitors outside the U.S. and Canada.

Source: WidgetBucks Blog

The hybrid CPC/CPM ads sound interesting and give publishers the potential to 'double dip'. Good news if you're looking for something to supplement adsense on your site. If you read my post on my top ten money makers for 2007/2008 you'll see that WidgetBucks was my third top earner for the 2007/2008 financial year.