Being very active in social media have benefits especially in improving website traffic. If you are an addict in Facebook and Twitter you might want to create a social community for your website and be the only place your visitors can hang out. Then integrate these social media into your site.
There are a lot of WordPress plugins that can do that. However, only this plugin is what has come into my attention. You should too because of its cool features not found in most plugins.
Read the review and get the download link here: http://wpmu.org/wp-mashsocial/