Well, what I have gone for as an interim is something similar.

Every feed has a lastCheck time, and every minute, the app checks the oldest 10 
feeds.  Therefore each feed should get checked roughly hourly.

Seems to be working well at the moment, I'll consider dropping the frequency 
once I know how this behaves..

Neil

>Why not:
>Give each feed a 'last check time'
>Once every 5 minutes, pick the oldest and retrieve it, then update last check 
>time to now.
>
>Also:
>I doubt most of your users check every 15 mins, so why does your site need 
>to ?
>
>-- 
>
>Tom Chiverton 
>Advanced ColdFusion Programmer

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