NOTE : This plugin was on CodeCanyon before (mistakenly deleted). If you have purchased this plugin and need to re-download it or support with it, email me through my profile page and ill get it sorted
WizyLike is a WordPress plugin that allows registered users or visitors to like/unlike your blog posts. It allows the user/visitor to like your post one time only and unlike it if desired. WizyLike has 3 style options and 12 colour options for maximum customisation. The mark-up is dead easy to style so if ready made styles doesn’t suit you, go ahead and make your tailored style 
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Through the plugin’s settings page you can setup the colour, style, users-only limit, like text (eg ‘like?’) and finally the unlike text (eg ‘unlike’). You can also disable WizyLike on single posts (see screenshots). The plugin includes a sidebar widget to show the most liked posts, its markup is highly customisable.
Note: The live preview is open for visitors to like the ready made posts on there. You can switch the style and colours live on the post page. enjoy
Version History
Version 1.6
First Release