Board Thread:Off-Topic Discussion/@comment-18369327-20130911170245/@comment-3076833-20130911181610

We're a wiki who hosts information, including songs and albums for all the Vocaloids, so it's not that hard to find new songs on here.

I think your best bet is the Vocaloids "Notable Song" page, like this is the page for Yukari Yuzuki. They feature various songs by the Vocaloids that have received a certian number of views (which vary between vocaloids). You can find a Vocaloids notable song page by looking up the link on their character page, or go to the Yukari page I linked and look at the "Music Directory" box at the bottom just above the comments.