The world celebrates Earth Day on the 22nd of April, and in conjunction to that, notable sites like Google, AOL, Yahoo!, YouTube, etc tweaked either their logo or web interface as part of the celebration. Here’s few websites that have done something to their sites to celebrate Earth Day. Content after jump.

Google

Search Engine Roundtable

Ask.com

Yahoo!

StumbleUpon

su.jpg

Flock

AOL

YouTube

Cre8asite Forum

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Posted by hongkiat in Interesting , at 04.23.08 Tags: earth day