It's weird, because I created an identifier with 4 letters and it worked, but on...

joao on April 9, 2008 | parent | context | favorite | on: Google Jumps Head First Into Web Services With Goo...

It's weird, because I created an identifier with 4 letters and it worked, but only after my first choice identifier, also with 4 letters, didn't work and it said it wasn't avaiable.