21. Google's MentalPlex
22. PigeonRank
23. Google Copernicus Center
24. Google Gulp
Gmail itself was released on April Fool's Day, and one gig of expanded storage space was also announced on April Fool's Day, causing some speculation that the announcement itself was a joke.
25. Google Romance
26. TiSP - Toilet Interent Service Provider
27. Gmail Paper
28. Virgle
The program would theoretically colonize Mars within 100 years, while traveling on a ship controlled by a super computer involving "Holistic Artificial Language interface visually mediated by a glowing red light."
Both Google and Virgin do have a non-April Fool's interest in space. Google is the sponsor of the Google Lunar X Prize, while Virgin Galactic hopes to sell flights on sub-orbital space tours.
29. Gmail Custom Time
Since Gmail was introduced on April Fool's Day 2004, there's often a separate Gmail prank - and sometimes a genuine Gmail feature, like extra storage space.













