Because I'm fascinated by how your ranking in certain search engines can fluctuate so rapidly over even one day, I hacked out a script (easier than scanning through pages of results). Pass the script a query (in quotes) and the url (can just be the first unique characters of it) you want to know the rank of, and it will tell you the rank. Yes, this is a hack. Yes there are other tools that do this. Yes, it requires Beautiful Soup (which was really straightforward to use).

Here's an example:

$ python proenneke http://panela
found! :http://panela

Update A similar script created by Fuzzyman