I set this IFTTT receipt up to track mentions of the Nexus 5 on the Slickdeals forums. Whenever it's mentioned, you get a text message.
If
New feed item matches
This Trigger fires every time a new item in the feed you specify contains a particular keyword or simple phrase.
Then
Send a notification from the IFTTT app
This action will send a notification to your devices from the IFTTT app.
Explore more great ways to automate Notifications and RSS Feed