Their web show is called iCarly so they call her iCarly because of the show.
They call it iCarly because Carly is the main character of the show.
Unfortunately you can't audition for iCarly unless there is an open casting call.
Pear pad
no she ain't real she is actually played by Jennette McCurdy type in icarly itwins on Google then wikipedia
In the first episode of iCarly, Freddie says to Carly and Sam: "Hey, why don't we call the show iCarly?" Then explains what it means: "i - Internet, Carly - you"
icarly but actually don't because its a trademark
yes she is so real
You can find most of the furniture at Jellio and look at some pictures on Google images