If you want to monitor the price of something on amazon.com and you would like a target price to trigger an email, use urlhasbeenblocked. Works great.
Oh the site is "camel camel camel dot com"
I was using http://thetracktor.com/
, I am not sure that I get emails properly though at price drops. These sites are great too at giving highs, lows and moving averages for prices on individual products so you get perspective on whether the current price you see is a good one.
If you benefit from the deal, REP the OP!
SlickDeals only has value so long as we all share.