This jQuery plugin generates sparklines (small inline charts) directly in the browser using data supplied either inline in the HTML, or via javascript.

http://www.omnipotent.net/jquery.sparkline/

[2 cents] This is pretty cool and might work nicely for creating a mini version of something you create a larger version of using jQuery FLOT. I know this one's been around for a while, but I'm still waiting for a prime use case so I can tinker with it. (usually when I say something like that I end up finding a reason to use it within a day... ha ha).

This one's not jQuery-specific but futzed with my mind yesterday and should probably be on any javascript developer's radar:

http://www.breakingpar.com/bkp/home.nsf/0/87256B280015193F87256C85006A6604

If you're ever wondering why parseInt isn't working with '08' or '09', this is why. Ue parseFloat instead.

[2 cents] Argggh! And thanks much to the original poster. If I hadn't found that post I'm not sure how long it would have taken me to narrow down that bug (I was working on a js function for reading data from a USB credit card swiping gizmo and the routine to parse the data wasn't working for months '08' and '09'). Good find.

OK, so a few days ago I said I was looking forward to seeing what Part 2 of this series would bring, and here it is:

http://dotnetslackers.com/articles/ajax/JQuery-Primer-Part-2.aspx

This one's a quick jump up from the more basic stuff that Part 1 had, taking you right to creating a plugin to show how to extend jquery.

[2 cents] Very nice primer on creating a plugin. Steps you nicely into best practices (very similar to what we used for our listnav plugin). Quite a step up from the more basic stuff in Part 1.

This TableDnD plugin allows the user to reorder rows within a table, for example if they represent an ordered list (tasks by priority for example). Individual rows can be marked as non-draggable and/or non-droppable (so other rows can?t be dropped onto them). Rows can have as many cells as necessary and the cells can contain form elements.

http://www.isocra.com/2008/02/table-drag-and-drop-jquery-plugin/

Can serialize the row ids for AJAX updates. Has a nifty ability to lock dragging inside multiple tbody's in the same table.

[2 cents] If you've got multi-column data you want to drag up and down, then serialize to your server, this looks great. Implementation seems thorough, docs are pretty good. Wish I'd had this for some arcane tablerow sortables I hacked together a couple years ago with straight javascript.

jGrowl is a jQuery plugin that raises unobtrusive messages within the browser, similar to the way that OS X's Growl Framework works:

http://www.stanlemon.net/projects/jgrowl.html

Messages appear in a corner of the screen, then fade out. Can display 'strips' (for lack of a word) of sequential messages. Some people call this a toaster effect: like toast coming out of the toaster (and then more toast out of the same hole (hmm)).

[2 cents] Lots of options here...well explained, a good set of examples (but none for putting messages in the viewport bottom-right corner, which is where I'd probably use it). 7 releases so far, so it seems pretty active (though no dates listed and I didn't poke around). Definitely on my keeper list when the muse-case strikes.