WordPress.com: Live theme preview and a new theme
WordPress.com is upping its game with the live theme preview feature, which allows theme customization while either testing or prior to switching to a different theme. Customization options include headers and backgrounds, navigation, site title and tagline, and theme-specific settings.
Concrete5: New themes and add-ons
Edublogs: Custom CSS and image widget
Onesheet: User dashboard
Onesheet is upgrading its user homepage yet again, and this time it’s morphing into a dashboard. Existing account-oriented content such as messages and settings will now show up here. A couple of features are new to the dashboard: page view stats, tracking codes for creating trackable URLs, and private pages.
Radium3: Editable background images
Radium3 users can now easily modify site background images using the design editor. Features include swapping in a new image, horizontal/vertical repeat, and image positioning. Get the details on Radium’s official blog.