Social media plugins for WordPress can help you interact with your followers on different platforms. Some popular plugins include:
Hootsuite: Hootsuite lets you manage multiple social media accounts from one interface. You can post to all of your accounts at once, or pick which account to post from.
WordPress Social Media Widget: The WordPress Social Media Widget lets you add social media buttons to your WordPress site. You can add Twitter, Facebook, Google+, LinkedIn, and Tumblr buttons.
Tweetmeme: The Tweetmeme plugin lets you create and share images with a tweet-like message. You can add a description and choose who can see the meme.
There are many social media plugins for WordPress, so it is important to choose one that will fit your needs. Some popular plugins include Hootsuite, WordPress Social Media Widget, and Tweetmeme.