My most popular photo on Flickr (passed the 36,000 views in July 2011). Thank you all for your comments and views.
This photo is used a lot in blogs, however now the photo is available under Getty Images (see Owner settings). However I would still like many blog enthusiasts to use my photos, so I created a new one, under the creative commons license:
And to make things more cool, I also made animated ones, a light one here:
and a heavier one (two pointers) here: