I first became a regular follower of Dad Labs via their video podcasts on iTunes, but have come to love their weekly parenting-in-the-news blog entries, community message boards, and more. You can also friend them on Facebook and Twitter.
It's not just for the SAHD's either. They cover all angles. Usually light-hearted and fun, but they tackle the challenges of being a father and bring in experts and outside resources. Technology, nutrition, baby gear, potty training, summertime safety, from birth to older kids, they just do all around good work.
You can find them at Dad Labs: Taking back paternity as well as the previously mentioned social media.