Worth a look especially the WordPress App.
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http://www.linkedin.com/static?key=application_directory&trk=fapg_1800
Featured Applications
LinkedIn Applications enable you to enrich your profile, share and collaborate with your network, and get the key insights that help you be more effective. Applications are added to your homepage and profile enabling you to control who gets access to what information.
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Reading List by Amazon
Extend your professional profile by sharing the books you’re reading with other LinkedIn members. Find out what you should be reading by following updates from your connections, people in your field, or other LinkedIn members of professional interest to you.
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WordPress
Connect your virtual lives with the WordPress LinkedIn Application. With the WordPress App, you can sync your WordPress blog posts with your LinkedIn profile, keeping everyone you know in the know.
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Box.net Files
Add the Box.net Files application to manage all your important files online. Box.net lets you share content on your profile, and collaborate with friends and colleagues.
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Blog Link
With Blog Link, you can get the most of your LinkedIn relationships by connecting your blog to your LinkedIn profile. Blog Link helps you, and your professional network, stay connected.
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Company Buzz
Ever wonder what people are saying about your company? Company Buzz shows you the twitter activity associated with your company. View tweets, trends and top key words. Customize your topics and share with your coworkers.
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SlideShare Presentations
SlideShare is the best way to share presentations on LinkedIn! You can upload & display your own presentations, check out presentations from your colleagues, and find experts within your network.
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Google Presentation
Present yourself and your work. Upload a .PPT or use Google’s online application to embed a presentation on your profile.
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My Travel
See where your LinkedIn network is traveling and when you will be in the same city as your colleagues. Share your upcoming trips, current location, and travel stats with your network.
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Huddle Workspaces
Huddle gives you private, secure online workspaces packed with simple yet powerful project, collaboration and sharing tools for working with your connections.