Effective communication is important everywhere: Within organizations, within families, and even within one self.
The most important effects that good communication can bestow upon an organization is primarily the fact that there will be clarity in terms of what is expected and what is accepted as part of the mission of the organization and as part of their common vision of a goal.
When there is effective communication there is very little room for doubts, rumors, and false information. In the same token, this leads to less instances of mis-happenings, anxiety, or unwanted stress.
Examples of effective communication within an organization include: Memos, daily newsletters, mini-meetings, colleague-mentors, livestreaming of newsflashes, an updated website, open lines for chatting and controlled e-mailing.