hoverIntent is a plug-in that attempts to determine the user's intent. It works like (and was derived from) jQuery's built-in hover. However, instead of immediately calling the onMouseOver function, it waits until the user's mouse slows down enough before making the call.
http://cherne.net/brian/resources/jquery.hoverIntent.html
JavaScript Libraries and Functions · UI
Get access to data on 6,835,973 websites that are Hover Intent Customers. We know of 2,788,658 live websites using Hover Intent and an additional 4,047,315 sites that used Hover Intent historically and 1,400,134 websites in the United States.
Get a list of 6,835,973 websites using Hover Intent which includes location information, hosting data, contact details, 2,788,658 currently live websites and an additional 1,321,346 domains that redirect to sites in this list. 4,047,315 sites that used this technology previously and 1,400,134 websites in the United States currently using Hover Intent.