Just to make the life a little easier I have short listed a range of plugins to make twitter-facebook and your WordPress blog work together. So here are WordPress plugins intended to help integrate Twitter and Facebook into your blog.
Share the content you write in WordPress with your Facebook Fans and Twitter Followers, simply and reliably.
Add Link to Facebook
Automatically add links to published posts or pages to your Facebook wall, pages or groups and more .
WP to Twitter
Auto-posts a Twitter update when you update your WordPress blog or blogroll, with your chosen URL shortening service.
Brought to you by MailChimp, Social is a lightweight plugin that handles a lot of the heavy lifting of making your blog seamlessly integrate with social networking sites Twitter and Facebook.
Twitter Tools is a plugin that creates a complete integration between your WordPress blog and your Twitter account.
Facebook Likebox Slider for WordPress
It is a Social Slider plugin for WordPress. Easy to install, simply to configure, very flexible with nice design.
Facebook Traffic Pop
Traffic Pop for WordPress is a new breed of ‘popups’ that will allow you to have your users like your pages, instead of trying to get them to click ads.
Facebook Plugins, Comments & Dialogs for WordPress
This Facebook Plugins for WordPress is the ultimate and most advanced plugin to integrate Facebook Plugins, Dialogs and Facebook comments into your blog or website. It’s using WordPress shortcodes to make it very simple to add a Facebook plugin or dialog into any blog post or page. The plugins also comes with 4 widgets ready to be customized + a way to automatically add a Like button and/or the Facebook comment system into all your posts and pages.
Facebook Like to Download
Facebook Like to Download for WordPress allows you to turn the Like Button into a social media traffic blasting download button. This unique plugin and idea is an all new way to give your users their content, and increase your social traffic ten fold.
This plugin comes with a ton of visual options and easy to customize. Uses the powerful Twitter api such as mentions timeline, user timeline, user list, mentions, home timeline, retweets of me, retweets id, show tweet by id, oembed, search tweets, favorites list, and lists statuses.