Microstock Statistics :: iStockphoto

I came across an interesting site the other day:

iStockcharts

This site seems to aggregate many of the statistics from every contributor to iStockphoto and display it in tabular form.  The data is sortable using the various headings (below) at the top of each page. 

• Contributor
• Total DLs
• # of Files
• Market Share of Files
• New Files in last 30 Days
• # of Reviews
• Reviews per File
• Member since

After a little digging (since the interface doesn't allow for a lot customization) I found that over half (54%, 15,932) of all contributors had less than 100 downloads, and based on the summary at the top of the site that's not too surprising.  The breakdown of types of contributors is found below, forming a sort of pyramid of types of contributor.

Black Diamond Contributors: 24

Diamond Contributors: 630

Gold Contributors: 934

Silver Contributors: 2672

Bronze Contributors: 7005

Base Contributors: 18087