- Provide ways for the viewers to legally purchase or download the albums or songs.
- Provide ways for the viewers to find out more about the artists or albums.
- Provide points of reference for the information in the database.
The first two points should be obvious. VocaDB is not intented to provide all the possible information about artists, nor can the users buy albums on VocaDB. Artists' own websites, online stores and sometimes other wikis are better for explaining this.
The third point means that links to reliable reference sites, such as vgmdb, Discogs, Hatsune Miku Wiki and the Vocaloid wiki are encouraged. As long as the linked sites are reliable, having more links to such sites makes the information on VocaDB more trustworthy as well. The other sites might still have some useful information that's not on VocaDB. Links to official sources such as artists' website are of course even better, but having multiple references is a good thing.
Do not remove external links, unless the information on the linked site is clearly wrong, or the links violate the VocaDB guidelines. If the links are dead, please mark them as unavailable.
It is useful to keep links that are dead (not working anymore). They can still be used to search for the entry, and link things together (avoiding duplicates). Most importantly are links to Twitter, YouTube and Nico Nico.
Please mark dead links as unavailable instead of removing them.
Links to sites whose main purpose is illegal file sharing are not allowed.