How many paths lead to Google?

I was doing some Internet browsing today and, on my way to Google, I mispelled the url. Instead of typing in google.com I typed in foofle.com. Imagine my surprise when I found myself at Google! This got me to thinking, how many other "typo" domains has Google purchased?

Google typos that still take you to Google

• foofle.com
  
• gogle.com
  
• gooogle.com
  
• gooooogle.com
  

I focused entirely on common misspellings of the google domain name. I have no idea how many domain names Google may actually own and point back to itself.

All of these go back to Google

• g00gle.com
  
• ggoogle.com
  
• gogole.com
  
• googel.com
  
• googil.com
  
• googli.com
  
• googlie.com
  
• googlr.com
  
• goolge.com
  
• gooogle.com
  

There are probably many more but these are the ones I was able to find by typing in URLs.