New Google search features provides helpful album, song and artist information. In a random search today I happened to notice that Google search results provide detailed album and song information for matching search results.
In the search string for Windows? environment variable Windir I happened to get results for an artist? by the same name. Following the Google Link displayed the following page where artist, albulm and track information is accessible.
I assume the next option to come will be the ability to preview and purchase the song directly.