Did you ever wait for a certain product to become available on Amazon? This service let's you easily monitor Amazon's product catalog for a search term through a custom RSS feed.

Simply enter your search term and subscribe to the feed. The feed is updated every few hours and will contain all available products matching your search.

A few things to note:

• Avoid broad search terms. Use it to monitor something specific. The script will only track the first 15 pages of search results.
• The feed isn't updated live. It will most probably be empty when you first subscribe. Just give it some time.
• A given term will be checked for three months, after that time no more items will be ever added to the feed. This is to avoid monitoring items, people are no longer interested in.

No longer available You can use the source code at Github if you want to run it yourself.