Webin has released ReadKit 2.4, a major update to the RSS client and read-later app with improvements to keyboard navigation and the introduction of a new sharing service. With version 2.4, most keyboard shortcuts can be customized under the Shortcuts tab of Preferences (this Webin blog post offers an explanation of the new shortcuts). ReadKit also adds support for the Buffer sharing service, which enables you to share links to your social media connections immediately or schedule them to appear throughout the day or week. The update also adds the capability to highlight code blocks, brings more granular preference settings on a per-account basis, adds a customizable sharing toolbar, improves sync speed of the built-in RSS engine, and improves compatibility with OS X 10.9 Mavericks. Unfortunately, ReadKit 2.4 drops support for 10.7 Lion. ($6.99 new from the Mac App Store, free update, 4.0 MB)
Two Shortcuts for App Exposé
If you want to see all the windows for a particular app via App Exposé, there are two hidden shortcuts. For either, start by pressing Command-Tab to bring up the app switcher. Then, while still holding down the Command key, press either the 1 key or the up arrow. That puts you into App Expose mode, with all of an app's windows showing, and recent documents in a row across the bottom of the screen. Let up on the Command key, and then you can press Tab to cycle through all the running apps.