This post shows how to use jsGrid to create an excel-like gridview for editing items in a SharePoint list. The grid rendered by jqGrid is similar to SharePoint’s Datasheet view, but it requires no ActiveX control.
How to quickly set up a web part that allows you to add/remove user accounts from groups.
How to use SPServices to implement a Google API-based orgchart with jQuery.
How to create a content slider based on an Announcements list that can be tweaked to fit other lists.
A look at selectors, attributes, and traversing with jQuery in a SharePoint context.
If you need to track relational information in SharePoint 2010, this solution is 80% likely to make your life easier with little effort. It makes adding a child items under a parent smoother for the end user.