If you want to find blogs with Artisteer themes, it is very easy: search PostHeaderIcon+home with Google and you'll find much in the results. This is due to a little awkwardness from SEO point of view: the icon that precedes the title included in the h2 tag. The image has an alt attribute "PostHeaderIcon". It would be preferable to delete the content of the attribute alt="" or put the title of the blog in the attribute of the icon. Even better: leave the icon h2 tags.
Here a screenshot of the Google cache of all home pages of sites with Artisteer theme where the word PostHeaderIcon is overvalued for search engines, because of the h2 tag:
