My goal to reach 500 dollars in passive income has now been achieved in March 2012. This goal was made back in August 2011 when I had just reached my last income goal of 200€. Since then the income has grown consistently almost every month as can be seen in the graph below:
About 70% of the income comes from book sales which I have compiled into a graph as well:
Assuming the growth in sales were to continue as they have, I may be looking at over 100 books per month before the end of the year.
My next goal will be to reach 750 dollars. A realistic deadline for this goal would be at the end of 2012, but to make things more exciting I will give my best to reach this goal before the end of September. Before getting back to work I will take some time off to celebrate. There will be cake.