wobserver.com for Google Chrome™
Wobserver.com is a service to monitor web page changes and detect keywords on pages. This extension offers quick addition of website urls to wobserver.com in order to be monitored. You will be able to monitor web pages for changes, set alert thresholds, define the area on the page to be monitored. Change reports can be viewed in an RSS reader. It is also possible to get alerted over keywords. Wobserver.com also deals with the challenge of changing links.