Bloggers spend significant time pushing their own thinking—and having their thinking pushed by others. They respond to comments and link to other writers, connecting to and creating interesting ideas. Some develop curriculum and instructional materials together. Others review resources and debate the merits of the individual tools of teaching. Philosophical conversations about what works in schools are common as teachers talk about everything from homework and grading practices to school and district policies that affect teaching and learning. Blogs become a forum for public articulation—and public articulation is essential for educators interested in refining and revising their thinking about teaching and learning.