Similarities between Google and Facebook

There are some similarities between Google and Facebook, where Google is topmost Search Engine and Facebook is topmost Social Networking Site, but still there are some similarities between them. So, Followings are the Similarities...

1. Both the websites had started from college campus.
Mark Zuckerberg started Facebook in Feb 2004 from Harvard University. Same thing happened with the Google, Larry Page and Sergey Brin started Google from Stanford University.

2. Name of both the websites have been changed now.
Facemash (Hot or Not) is now known as Facebook. BackRub is changed to Googol and now it is known as Google.

3. Both the websites earn from advertisements. 
Both use User Data for their advertising and earn money.

4. Both want that people of whole world use internet and are using Drones for that.

5. Both Facebook and Google works on the Artificial Intelligence Project. Facebook is now working on Voice Recognition and Google is working on a Car without Driver.