You don't need a website with a pressroom or even a blog, just information and images which promote the exhibit or new work not necessarily being exhibited in a gallery. The more images the better.
Info on submitting info for consideration to the Pittsburgh Art Blog.
...The Pittsburgh Art Blog
The Pittsburgh Art Blog features selected pittsburgh artists and upcoming exhibits with photos from the artists and galleries. since the major press outlets do not go beyond a directory listing of exhibits, blogs are needed to promote pittsburgh artists and their work. the blog also calls attention to the inferiority complex of pittsburgh art and how it's perpetuated by the major players in town. Started on August 20,2007. pittsburgh area galleries and art venues are listed at the sister site www.PghGalleries.com.
the blog and website are volunteer projects from fine art photographer and pittsburgh artist advocate rick byerly.