Recommend It allows your blog’s veteran readers to recommend posts to first time visitors through a simple voting system, using a button at the bottom of your posts.
The recommended post titles and links are displayed before your most recent posts on your front page, allowing new readers to find the best of your site easily. This might help new users find out what your blog is really about and now be put off by the most recent post on your site which could be unrelated to the rest of your blog, or not your best work- a rant about your boss, for instance!
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10-03-07
Plugin: Allow Users to Recommend Posts 
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