Marketing Your Home Care or Elder Care Business on Facebook? Watch it- you might want to know the rules of the game.
Read this and get the drift! 
One of the best articles I’ve read (And what I’ve been PREACHING) in a long time on how to appropriately use these tools. People first, business second, that’s the unwritten social media marketing RULE!
http://mashable.com/2009/02/27/social-media-for-business-2/
