sibeliusmusic.com?

[PMeuph]

From what I gather, the owners of Sibelius wanted to distance themselves from the process of selling music online. It seems that score exchange is run by different managers.

http://www.scoreexchange.com/help/about ... change-com" target="_blank

FWIW, I think this new site is better for arrangers/composers/publishers as it allows you to publish your scores for free and keep 50% of the sale price.