As a choir conductor, it's been a long time I always check for new updates and I'm subscribed to the newsletter. I recommend Chorus Online because they really have the bigest and highest quality sheets and catalogue with useful tools as the vocal tracks.
You're always looking up to improve the catalog and the tools such the vocal tracks available.
Improvements or suggestions
As I'm from Argentina, a country with many restrictions to buy online in a foraign currency, it's very difficult for us to buy more often that we would like. Maybe some kind of discount for us or for a little vocal group would be amazing!
Good to hear from Argentina. We hear what you say... our team has to be paid in Euro's...and we have to pay our royalty's in Dollars... discount doesn't work for us.
The little gift is sent to your mail address.