Well, today's is, in my humble opinion, the best yet. Unfortunately, any attempt at getting a screenshot isn't working very well.
You'll just have to go and see what I'm talking about. Move your mouse over the logo and see what happens! It's so much fun.
And this is where I hope that everyone reading this blog today will see what I see on google.co.uk!
Joanna told me it's Google's birthday today. Happy Birthday, Google!
She also shared this site so I've been looking at tons of old logos. Fun stuff!