I don't know if this is old news, but couldn't find an existing reference on Blogoscoped. Looks like the algorithm made a funny mistake here.
http://wanted.eu.org/i/_misc/google-flickr-search.png |
It seems that sitelinks aren't present on all datacenters http://209.85.135.104/search?q=flickr&hl=en http://img252.imageshack.us/img252/9639/flickrwj7.png |