Artists signed with Interscope have a domain name that consists of their full name and the word "official."
For example:
http://www.piatoscanoofficial.com
They apparently registered these domains once the Top 24 was decided.
The registration dates:
1) JacobLuskOfficial.com = December 17, 2010
2)
HaleyReinhartOfficial.com = December 24, 2010 (<-- not live yet, but check back)
3) CaseyAbramsOfficial.com = December 24, 2010
4) AshthonJonesOfficial.com = December 24, 2010
5) ClintJunGamboaofficial.com = December 24, 2010
6) PiaToscanoOfficial.com = January 3, 2011
7) LaurenAlainaOfficial.com = January 3, 2011
8) NaimaAdedapoOfficial.com = January 3, 2011
9) RachelZevitaOfficial.com = January 3, 2011
10) JovanyBarretoofficial.com = January 3, 2011
11) JordanDorseyOfficial.com = January 3, 2011
12) JamesDurbinOfficial.com = January 3, 2011
13) KarenRodriguezOfficial.com = January 3, 2011
14) KendraChantelleOfficial.com = January 3, 2011
15) RobbieRosenOfficial.com = January 3, 2011
16) LaurenTurnerOfficial.com = January 3, 2011
17) PaulMcdonaldOfficial.com = January 4, 2011
18) StefanoLangoneOfficial.com = January 4, 2011
19) ThiaMegiaOfficial.com = January 4, 2011
20) TimHalperinOfficial.com = January 4, 2011
21) TatynisaWilsonOfficial.com = January 4, 2011
22) BrettLoewensternOfficial.com = January 21, 2011
23) JulieZorillaOfficial.com = March 3, 2011
24A) ScottyMcCreeryOffical.com = March 1, 2011 (cashparking)
24 B) ScottyMcCreery-Official.com = May 26, 2011 (umusic)
Since they weren't all registered on the same day, I assume they must be registered as part of a process after their paperwork is turned in. If that is true, Jacob must have been really eager. At first, Haley's was the only one I could find from December. But they registered four on December 24th before probably closing the office early for the holiday. Then when they returned after the new year, they registered most of the rest on Monday (1/3) and Tuesday (1/4).
It looks like Julie and Scotty fail through the cracks. A domain squatter actually picked up the preferred domain name for Scotty, which is why the official domain name includes a dash.