Take a look at the docs. That plugin uses Simplepie as an aggregator. Google results: http://simplepie.org/wiki/tutorial/setting_up_a_cron_job_with_simplepie
Take a look at the docs. That plugin uses Simplepie as an aggregator. Google results: http://simplepie.org/wiki/tutorial/setting_up_a_cron_job_with_simplepie