Today's post on teacher attrition in high-needs schools features contributions from Mark Y. Lineberg, Doris A. Santoro, Dave F. Brown, and Patricia Jennings. I've also highlighted comments from readers.

Got a friend who's ready to take the Twitter plunge? Try this handy beginner's guide to the real-time social network.

English teacher and instructional technology coach Brianna Crowley offers practical advice on creating professional learning networks built on intersecting layers of relationships.

I often begin my workshop on personal learning networks (PLN) for educators by asking these questions: Who is in your learning network? Who do you learn from on a regular basis? Who do you turn to for your own professional development? Then, I share with participants these ten tips for building their own personal learning network, and I hope these might be useful for you too.

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Your complete guide to timing social media outreach for the best results.

What is a PLN?

Will Richardson was the first person to clearly explain to me about six or seven years ago what a PLN was. Back then, PLN stood for Professional, or Personal Learning Network.

A 2013 article in Forbes Magazine suggested that only 8 percent of people follow through on their New Year's resolutions because they are often too lofty. Here are 9 easy places to start.

Educators Renee Moore, Katy Farber, Sharon Jacobs, and Opal Davis Dawson share their thoughts about why teachers stay at difficult-to-staff schools.

Marjorie McAneny, Alan Sitomer, PJ Caposey and Steven Anderson share their suggestions for educators who want to write a book.

This collection of blogs, articles, and videos from Edutopia aims to help teachers deploy social media tools in the classroom to engage students in 21st-century learning.

To ensure productive group work, teachers must communicate expectations, strategically build groups, structure activities, scaffold work with a supportive classroom culture, and stress individual accountability.