how do i change this text in the default listing page?
Google+Enter your Google+ ID or URL here. If you add your Google+ ID the URL will look like this: "http://plus.google.com/108097040296611426034/" where the number is your ID.
FacebookEnter your Facebook username or URL here. If you add your username the URL will look like this: "http://facebook.com/AppThemes", where "AppThemes" is your username.
TwitterEnter your Twitter username or URL here. If you add your username the URL will look like this: "http://twitter.com/AppThemes", where "AppThemes" is your username.