And speaking of LaunchBar 6 actions and extensions, I stumbled across a few really great ones on the Objective Development forum.
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This one for searching and viewing you Pinboard bookmarks right from within LaunchBar is awesome.
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And this one that hooks in with the FeedWrangler API pretty much turns LaunchBar into a full-blown RSS reader with the ability to browse all items, send a specific item to Instapaper (or your read later service you have hooked up with FeedWrangler), and to mark the item as read.