The notification system let's you know if someone has interacted with you on https://peakd.com/ or other similar sites.
The user 
PeakD.com has color coded the types of notifications to help you quickly find the types of notifications you are most interested in.
This notification system can be used across many websites... therefore we have to communicate information. So when you click on the "CHECK MARK" it will do a transaction to let all websites know that as of this date and time you have seen all the notifications. From then on we will only count notifications that come after that check mark action.
A. This is where you access the notifications menu and where you see new notification quantity.
B. This is where you click if you have read all the notifications and want the number to go away
C. We show the most recent 4 and you can scroll... but ones that are new have the circle filled in.
D. You can see different types of notifications have different colors.
E. You can go to a page where they are all displayed nicely and you can also FILTER the notifactions on that page.
Getting the system out as a good proof of concept was top priority at some future date being able to customize them will be available.
The last item (VOTES) is usually the one people most want to customize so they can either get more or less notifications about votes.
The notification system was built on top of a technology called "HiveMind"... this technology also runs things like our list and badge feeds and runs the entire Communities system. We are only scratching the surface of all the cool things Hivemind can do.
@peakd. Main authors presently: 
@jarviePlease follow up this post with any other questions you have for this topic
