What truly is vital...would be ownership. If an artist has their own website...that should be vital...even if it is a facebook site. This needs to be much more literal than it is now.
I tend to a prominent film artist's site. He owns it, he's active with it, he's been at it for 14-plus years (as have I; bless him:) It's content-rich and as vital/authoritative as you can get on his works, on how he works, on him. Size-wise, it's the equivalent of a 400-page book.
And it'll be a cold day before his site rises above Amazon-owned IMDb's single, solitary page for his name.
(At least we're above WIkipedia's single page. Finally.)