google.co.nz/logos/2011/womens ...

And google.co.nz/events/iwd2011/

Most of the readers celebrate it tomorrow after 2+something hours :)

sites.google.com/site/internat ...

Google Street View's Pegman becomes Pegwoman on that day

maps.gstatic.com/mapfiles/cb/m ...

baidu.com/img/baidu_logo_jr_20 ...

google-latlong.blogspot.com/20 ...

On Bing.com there was 'Another reason to party' pointing to
bing.com/search?q=internationa ...

I.e. on their front page