Teachers are increasingly using social networks, including social media and other Internet applications, to look for educational resources. This study shares results from a survey examining patterns of social network application use among K-12 teachers in the United States. A sample of 154 teachers (18 males, 136 females) in the United States answered questions about their use of social network applications, their comfort with Web 2.0, and their use of empirically-based resources from social networks. Results provide a user update on factors that predict overall engagement with social networks, which included comfort and trust in using social networks, as well as higher age. We also explored the most popular applications used by teachers and the most popular reasons for their use. Finally, we implemented a new survey methodology to gauge responses about empirically-based posts on social networks and discuss results in the context of balancing free resources with high-quality pedagogical information.