As a way to get me social presence out there as an aspiring author of young adult and Christian young adult novels, I have started using about.me which serves as an online business card. It gives links to each social media outlet you use on in one place. This is a campaign run by BzzAgent to help get the word out there.
<img src="http://img.bzzagent.com/image/aboutme.jpg?Type=activity&Activity=8907819073&Campaign=4813611877&Uid=1226087&token=2cfc787f6539008a040734a4723bf546" alt=""/>
My page is: http://about.me/becky_pratt
Check it out.