One the greatest benefits of social media (blogs, twitter, facebook, etc.) is to share professional resources. Below are a few I have found most interesting this time around.
Why observation should be your first response to misbehavior
Our reactions to situations matter, as educators. If we model "calm, cool and collected" behaviors, even when things do not go our way, we promote the attitudes and responses we desire students to have. This article discusses the approach to classroom "governance" that is based on behavior observation prior to response. Similar to the ideas proposed by Madsen & Madsen and David Newell.
Another great resource to find apps for various content areas, grades, and content standards.