I know of the addons which reload the page and inform about any change on the website like Check4Change and Reload Every for Firefox. However, I'd love to have something which not only looks for any change but for a particular keyword or a list of keywords. I mean: something that I can configure to look for, say, "Jesse James" and it reloads every n seconds but gives me an alert/sound only when this keyword appears on the site, ignoring any other content chagne. Is there anything like this for any browser?
Consider testing sikuli that performs pattern matching :