If you'd like to change your email settings so that you're notified more or less frequently about replies, messages, kudos, etc....here is how you can update those settings:
1. Mouse over your avatar in the top right corner and select "My settings"
2. Select "Subscriptions & Notifications"
3. You can browse the topics you've commented on in the "My Subscriptions" menu below the "Email Subscriptions Options" box and select which ones you'd like to subscribe - or unsubscribe - to.
4. Save your selections and click on "Notification Settings"
5. Scroll down below the "Email Notifications" heading and select your settings of choice (Never, Immediately, Daily Digest, Weekly Digest) for each kind of notification.
If you have questions, let me know!