Follow That Page - web monitor: we send you an email when your favorite page has changed. - 0 views
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yc c on 31 Jul 09The free service provides 100 daily page checks and 1 hourly check. You can monitor additions, deletions, Google page rank, keywords, and sections of a page. Alerts are sent to you by email. They say they are working on a paid version of their service that can monitor 1000 pages per day and 50 pages per hour per user.