The purpose of this action research study was to examine the effects of implementing an online professional learning community (PLC) designed explicitly for teachers of gifted and talented (GT) English language arts (ELA) courses. The present action research (AR) is a limited mixed design study, including quantitative and qualitative elements, to discover the effects on collaboration and professional growth focused on best practices for GT instruction. The quantitative data were collected through surveys, which included Likert scales and nominal items and were analyzed through descriptive statistics. The qualitative data were collected through guided and semi-structured interview questions and transcribed before being analyzed and reported. In accordance with AR, the results of this study were analyzed and reflected upon with TPs to develop an Action Plan designed to solve the problems associated with PLCs for teachers of GT ELA courses. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]