With any social media platform, if you're there, you need to really be there! Having a placeholder presence is not enough. Marcos recommends that nonprofit organizations make social media a daily activity -- not just once a week. His recommendations for each platform are:
Before you puke, remember that you don't have to create all the content you send out! One of the best strategies you can do to develop strong followers is to *share* info from other sources that are relevant to your audiences. Sharing someone's comment, responding to them -- this is how you build your presence online.