Create your own "requires-jQuery-to-run" bookmarklet!
Kaiten is a jQuery plug-in which offers a new navigation model for web applications. Unlike conventional applications where the screen flush another without continuity between information and actions, with Kaiten interactions between the user and the application are a stack of contiguous screens where each screen is presented in columns.
Flot is a pure Javascript plotting library for jQuery. It produces graphical plots of arbitrary datasets on-the-fly client-side.
Masonry is a layout plugin for jQuery. Think of it as the flip side of CSS floats. Whereas floating arranges elements horizontally then vertically, Masonry arranges elements vertically then horizontally according to a grid. The result minimizes vertical gaps between elements of varying height, just like a mason fitting stones in a wall.
lightweight cross browser jQuery popup plugin. It's not creating your popup but doing all the logic as opening, closing, centering on resize & scroll, creating a modal overlay etc. It can open any container you create with all kinds of content.