I found this blog randomly searching:
Seen Reading. The author explains her site as
* 1. I see you reading.
* 2. I guesstimate where you are in the book.
* 3. I trip on over to the bookstore and make a note of the text.
* 4. I let my imagination rip.
* 5. Readers become celebrities.
* 6. People get giddy and buy more books.
My favorite posts so far are
here and here
Be giddy, buy books, and enjoy!