You can now get a lot of choices for your domain suffix. It includes all these listed. The dot com is the leader and is what web pages in Google default to.
Dot net and dot org are next.
However there are popular extensions like dot me is very popular. I have eCollege.me as one of my sites. Be aware too that you can write your domain name in capital letters so I can have BloggersOfTheWorldUnite.com
Dot co is also popular and I have cyberculture.co because all the main domains had been cybersquatted.
So you have a lot of choices. It is still not so easy to get short names tho I have Oknp.net OK No Problem! A four letter domain is a treasure.
Well I’m standing by the river
But the water doesn’t flow
It boils with every poison you can think of
And I’m underneath the streetlight
But the light of joy I know
Scared beyond belief way down in the shadows
And the perverted fear of violence
Chokes the smile on every face
And common sense is ringing out the bell
This ain’t no technological breakdown
Oh no, this is the road to hell
And all the roads jam up with credit
And there’s nothing you can do
It’s all just pieces of paper flying away from you
Oh look out world, take a good look
What comes down here
You must learn this lesson fast and learn it well
This ain’t no upwardly mobile freeway
Oh no, this is the road
Said this is the road
This is the road to hell