Especially in web apps where more than 1 user interacts, an inbox (or a bell icon) with unseen count is a great way to ensure users never miss updates.
For example -
CRM: customer - support team interaction.
Project Management Tools: multiple members commenting on a particular topic
Social Networks: Getting notified of likes, comments etc (This forum also has one)
Anyone here who tried to build a notification center for their web-based app? What technology do you use?