Tim -- Welcome. Saw you in the group and accepted you to post comment and such. Thanks!
David K. you are not dense ... you ask some important questions. First I'm very surprised it doesn't come up on the first page of Google of all places. The article indicated 85% do, and I thought that was being conservative ... so you proved that point. However you do come up on Yahoo and Bing and DuckDuckGo on page one.
With that said the advance search in LinkedIn on the left column ... their is a search field for industry ... the person looking for you would put in that box 'art'. You can post multiple occupations on your profile header, I do, and I encourage it because online the more transparent you are the more trust you convey to developing relationships.
I think you should join LinkedIn because ( other that Google it seems ) it will help bring your name, your brand, to the front page of search ... indirectly.