The best resource I know for a fan-maintained list is NWoD portal at thesubnet.com. For the Virtues and Vices in the GMC chronicles, they are listed in the character Creation tab under the Mortal (Adult) [GMC] directory. As of the time of this posting, there is an error for the Virtues location in that directory (it is also listed under Vices), but the page loads correctly.
The site is an excellent resource, as the webmistress has rather extensively compiled information from most of the books and it is well-organized. It cannot replace the books, but it is a much faster codex to find the information you need.
If you would like the direct links, here are Virtues and Vices
EDIT: For children in the nWoD, White Wolf created Assets and Faults, but they are similar to the Vices and Virtues and thus not particularly helpful in this case. However this discussion brings up some good points on the material to consider, as well as a few alternate Virtues.