I started my own blog to begin, which is a "portfolio" of my learning. I learned about the power of open reflection and how it can deepen learning. When I know everyone can see my work and reflections, it makes me think more deeply about what I'm learning.
The least innovative organizations often seem to surround themselves with like-minded people. Innovation often comes from conflict and disagreement, not in an adversarial way but in a way that promotes divergent thinking. The focus is not to go with the idea of one person over another but to actually create a better idea - perhaps one that merges multiple, shared ideas. If you want to be an innovative leader, surrounding yourself with people who mirror your personality is not the way to get there.
Honesty, trust, empowerment - they go a long way to making employees happy, bosses successful, and organizations profitable.