A few months ago, I create 2 Twitter feeds: http://twitter.com/applelinks and http://twitter.com/applestuff

Each of these based on an RSS mix of the same 8 or so Apple-centered websites.

@applelinks tries to filter them for quality, by posting only links that appear in more than one feed or link from one feed to another. Also, it runs the URLs past delicious.com to add a few relevant #tags.

@applestuff does none of that. It just posts every item that appears in every feed, prefixed each with the same #apple tag.

Both of these started on the very same day. None of them was promoted etc. Current results: 229 subscriber for @applestuff, 66 subscribers for @applelinks.