Post links to arias that you like on YouTube. Doesn't have to be arias, by the way -- basically anything with good vocals.
Andrea Bocelli -- Ave Maria
http://www.youtube.com/watch?v=SqBJFDbE2ZI&feature=rec-HM-r2
Bocelli was actually Sidoh's recommendation :P Absolutely stunning performance of Ave Maria.
Okay, so, despite this being X Factor, a good song choice actually snuck right in there.
Leona Lewis -- "Summertime" (from the opera Porgy and Bess)
http://www.youtube.com/watch?v=s-R_mMTvBBs
I really like this duet.
Charlotte Church / Billy Gilman -- "Dream a Dream"
http://www.youtube.com/watch?v=QuymNdkUc3E
To put this in more context, I think it was straight from a performance of Les Mis.
Ruthie Henshall -- "I Dreamed a Dream"
http://www.youtube.com/watch?v=Yt-IBJpEMzA
Of course we need to include this :P I think this is my favorite one on YouTube; also happens to be the first hit.
Emmy Rossum / Gerald Butler -- "Phantom of the Opera"
http://www.youtube.com/watch?v=Ej1zMxbhOO0
Another performance:
Sarah Brightman / Antonio Banderas
http://www.youtube.com/watch?v=S88rkpPu8_g