If you have free web hosting, it's likely you don't have access to Cron to run automatic tasks like database backup and so on. Cronless offers such a service with free cron jobs. Some things you can use Cronless for: Automatic Database backups Scheduled Tweets Cleanup temp files Reset online game information It's the most reliable PHP cron job service available. (Not limited to PHP--you can run JSP, DHTML, ASP, basically ANY web script accessible on the internet)