Notifications execution related to a given source can be scheduled by specifying a time span.
This could be useful if you are running Curiosity - say - daily, but you want to execute providers (for example newsletters) for a given source on a weekly basis.
The extracted information for a scheduled source is buffered across executions, until the given time span will elapse.
<webSource
name="aScheduledSource">
<schedule>
<days>6</days>
<hours>12</hours>
<minutes>0</minutes>
<seconds>0</seconds>
</schedule>
</webSource>