Another alternative seems https://www.wachete.com which extract text from pages and monitors

When I put it to google it finds some cooking receipt, maybe drop a link. I personally use for tracking website changes https://www.wachete.com

I have good experiences with http://www.wachete.com

If you care also about the content itself you can try http://www.wachete.com

Give a try to www.wachete.com it has email notifications where they send colorfull diffs with added content.

Try Wachete (http://www.wachete.com). Has mobile applications for Android, WP and iOS and as well 1 click plugin to chrome.