What an intersting twist on the virtual blog tour. Those I've been hosting have been authors who go on month long tours.
However, I came across Brenda Marks' idea for an online reception and drawing to coincide with her show opening. Those who couldn't attend could leave a comment on her blog and have their name tossed into the hat for a drawing for one of her prints.
So, no matter what type of art you're involved in, you can enjoy virtual tours, virtual visits, virtual grand openings. Authors also can use this idea with a drawing for a copy of one of their books.
(Incidentally, I learned about Brenda's online reception and drawing at Alyson Stanfield's Art Biz Blog. http://www.artbizblog.com/2007/09/artists-virtual.html )