According to the latest publicly available financial information, the Linux Foundation pulled in just over $9.6 million for their 2010 fiscal year, and after $9.1 million in expenses, generated $537,958 in positive cash flow for the year. In terms of direct salary, Executive Director topped out the list with $344,200. Factoring in other compensation, Zemlin brought home $362,904 before taxes in 2010.

But Zemlin is not the highest-paid non-profit leader in the FLOSS community: the Mozilla Foundation generated the highest compensation levels for Baker and Etch who, while receiving no direct salary from the Mozilla Foundation, were compensated $589,953 each from "reportable compensation from related organizations" and "estimated amount of other compensation from the [Mozilla Foundation] and related organizations."

"Related organizations," in this instance, is the Mozilla Corp., the for-profit subsidiary of the Mozilla Foundation that generates much of the Foundation's revenue.

With a revenue of $1,934,659, the Mozilla Foundation ranked fourth of the eighteen FLOSS-related non-profits researched for this report. But with a net cash flow loss of $1,333,815 for the 2010 fiscal year, the Mozilla Foundation was next to last on money lost for the year.