The jQuery repository jquer.in is perhaps the best place to find brand new jQuery plugins.
It’s a self-branded webapp with “a jQuery plugin a day”. You can find everything from menus to parallax features, media sliders and practically anything you could imagine.
Every developer loves to find a new tool or resource that enhances their workflow. Since jQuery is the most widely-accepted JS library, plugins are a big part of the jQuery framework.
This is why jquer.in is so powerful – it gives developers a chance to browse through all the options and pick their favorite.
Search the site by category or just scroll through the latest submissions. New jQuery plugins are indeed added very frequently and most of them are very high quality.
If you build a plugin yourself or find a cool resource then consider submitting a plugin for inclusion on the site.
You can keep up with new releases via RSS feed or on Twitter @jquer_in.