Just personal ones, like using webhooks to filter feed items according to their content (like you can do with Yahoo! Pipes), inlining the content from links in

Just personal ones, like using webhooks to filter feed items according to their content (like you can do with Yahoo! Pipes), inlining the content from links in twitter feeds, or grabbing all starred content to display in a front-end "curation" widget. There's tons of cool stuff you could do, really. Don't overthink what I meant with professional use, though, mainly it's just people using a reader with 10 times the feeds a regular user would have, and perhaps sharing their account with other people to go through unread content more quickly.