ONE and Stamen Design partnered up to create some nice interactive isualizations of the G8 commitments to sub-Saharan Africa back in 2005.  They have a print-report and some nice interactive visualization tools to let you explore the data.

Each page starts with 2010 giving levels; you can watch the “bubbles” expand for each donor country as you load the page. From there, each data page has pull feature that shows giving over the past 10 years; you can watch the country bubbles change over the years, showing the history of their aid assistance. You can also click on the years at the top of data tables below the bubbles to sort giving levels by year — think of it as sorting an Excel file right there in your browser. On the right side of each table, you can mouse-over each country’s sparkline — a line that graphs each country’s giving over the past ten years — to see where their commitment peaked.

via ONE | Visualizing commitments with the 2011 DATA Report online.