I've been using the RRS feeds from CL to monitor a few searches. I would use a site like craigshelper.com to do the initial search, then in each of the search results windows, grab the rss link for the search and put it in a news reader. I've been using NewsLife, which has some flaws, but seems to be working ok for this task. I have it set to update once an hour which keeps me right on top of tracking down some hard to find items. Once you have your initial feeds set up in your news reader, you can use your favorite text editor on the OPML file for a little find & replace to edit your search terms. Anyone else using a similar solution?