I recently posted an account on my MovableType-based site recounting
problems I've had with a local dealership. My site (http://
mamamusings.net/) generally has a pagerank of around 6, and for the
past 3 days the entry in question (http://mamamusings.net/archives/
2008/08/23/dorschels_dreadful_difference.php) has come up on the first
page of results for searches on "dorschel scion" and "dorschel
difference".

Today, however, the entry page does not come up at all...even in a
search limited to my domain. It seems to have completely vanished from
the index. What would make a single page from the site suddenly vanish
from all search results?

I wondered if the fact that I had linked multiple times to the same
Yelp review might have affected it, so I've removed the duplicate
links. Is there anything else I can or should do to make this page
start appearing in results again?

Thanks for any advice you can provide...