There are some people who like to read everything in reverse order and Google has built a search engine for them at http://com.google.
Any search you do is reversed or backwards.
Google announced this on Google+ as an April Fools joke saying:
We’re always thinking about what’s ahead, but sometimes it’s important to look backwards. In that spirit, we’re proud to introduce http://com.google, available today. Made possible by new gTLDs (http://goo.gl/HolXqe), http://com.google gives us an opportunity to reflect on our efforts by flipping our results on their head (and y axis).So take a minute out of your day to peek at the Search you know and love at http://com.google. It might just change your perspective.
Forum discussion at Google+.