hoverIntent jQuery Plug-in : hoverIntent is a plug-in that attempts to determine the user's intent... like a crystal ball, only with mouse movement! It is similar to jQuery's hove...
Push by Nickersoft : A compact, cross-browser solution for using the JavaScript Notifications API
Novu : The open-source notifications infrastructure. A fully-featured microservice to send SMS, E-mail, Slack and Push notifications. Embeddable notification...
Web Forms : Web Forms 2.0 Cross-Browser Implementation
Humanized Messages is a javascript-based system for non-model notifications, from an idea by Jef Raskin, as relayed by Aza Raskin and adapted for jQuery