I did no work on either creating new online articles or backlinking in December 2009. In November 2009 I had a target to earn $5 from Infobarrel and $30 from Hubpages so here are my results.
Hubpages: $31.14 (33% decrease)
Infobarrel: $1.40 (100% increase)
As can be seen there was quite a considerable decrease in Hubpages earnings - this despite my page views staying quite similar to November 2009. However from research I know that my page views are coming from different hubs in December to November and these happen to be ones with lower earnings per impression.
In January 2010 (a new year already!) I hope to halt this slide in Hubpages earnings. I also hope to create an annual review soon.