As you all should have guessed the top domain is .com and it is the first by far with 53.3 million .com domains!! Second comes .de (yeah you guessed it wrong, .de is used more that .net) with 9.83 million and third comes .net with 7.42 million domains.
See the full list at:
http://www.ipwalk.com/blog/?p=44
WOW... I would have never guested that .de is more common than .net! Thanks for the info!

Woah, That was a surprise for me also.
.net's aren't all that common, I don't see them as often as .org's.
But I never would have thought that .de is more common!
Thanks for the quite interesting info about domains. I also did not know that .de is more common than .net.
Amazing!! i visited a lot of site with extension on .com and .net compared to .de
Wow that's good new information. I have never visited a site with domain .de, I didn't know they existed. I've visited .net, .org, .usa, and .tv. Thanks for the great information. I'm going to check out the link.
.de, well, in the first place I don't even know what that extension stands for. But whatever the case is, I don't think .coms will ever be beaten in the market. I have seen in domain forums that they can go as high as half a million, depending on the type and rareness of the domain.
.de stands for Deutschland (=Germany)
Great info! I'm bit surprised to see .org not really up there and .info is close to it. I don't like .info's much.
maro
net is the second place as far as i know without checking blogs or sites
i always used to see whether .com is available or not then goes to net but not de
even my friends too