Any career needs continuous learning. likewise in PM career one should constantly upgrade themselves with learning.

Recently i read simplilearn had launced a great course of 9 courses for $549 or so. Similarly other vendors will have courses.

Even if you dont want to take paid courses, there is enough material available elsewhere to read to enhance your PM career. Videos on youtube, vimeo

PMZilla has created its own section for the same

http://pmzilla.com/practical-project-management-articles-tips

http://pmzilla.com/huge-collection-practical-project-management-articles

Hope above info is helpful.