Google Gmail April Fool's 2007...
For those who have not seen it yet, go to your Google Gmail login screen and they are touting a new service called Gmail Paper which promises to print out and deliver FREE to your door hard copies of your email. This is paid by the ad graphics on the reverse of the paperwork. Attachments are included!
I admit they had me for about 10 seconds. :-) Thought it was cool enough for my blog, but kinda off topic!