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Some more Cyndicate tips for you:

• If you hold down the option key, "Mark Unread" and "Delete" become "Mark All Unread" and "Delete All."
• There are a few contextual menus. Give them a try.
• Clicking the "Share This" toolbar icon quickly will prepare an email.
• Not a Cyndicate tip per se, but if you want to add a keyboard shortcut to "Blog This" or some other menu item, remember you can do so in the "Keyboard and Mouse" preference pane.
• It's quite easy to design your own stylesheets. Give them a go!

More to come as I think of them, or suggest your own in the forum.