Due to the recent unrest in Kenya, the national parks in that country are in need of help. According to this article park attendance has dropped 90 percent this year and the fees from visitors pay much of the bills. Fortunately, as also featured in the article, the parks are having some success raising funds online.
Even if you can't donate, visiting the Mara park ranger's blog is definitely worth the time. You can view it at http://maratriangle.wildlifedirect.org/. It has amazing photos of the wildlife on the Mara.
Having had the opportunity to visit the Mara this past winter (which is when I snapped the above picture), I can definitely say it is an area worth preserving. The diversity of wildlife in that area is incredible.