Education Week: educational news
The Marshall Memo: weekly round-up of educational articles and research
edWeb: podcasts and webinars on a variety of education topics (Participating in some can earn CEUs)
NCCAT: online and in-person PD opportunities
Edutopia: articles and videos on a variety of educational topics and trends
Choice Literacy/The Big Fresh: weekly (free) newsletter of literacy-based best practices
Teaching Tolerance: working on the work, in all areas of education
Cult of Pedagogy: blog and podcast about a variety of educational topics and trends
The Cornerstone for Teachers: offers articles and posts about a variety of topics in an easy to search format