As an Insider, you can follow other community members for updates on their activity within the community. You'll find these updates on your Activity page under the Followed Activity tab (depending upon your email notification preferences, you may also receive email notifications of this activity). You can follow as few or as many other Insiders as you wish. Follow other Insiders that have similar interests, offer interesting perspectives or maybe you already know each other.
You can follow another Insider by clicking the "follow" button in either of these two locations:
In the top right corner of the member's Insiders profile
Within the popup window that appears when you hover over an Insider's username