jQuery makes JavaScript simpler and easier to use. It also run the code on many browsers without writing validation code for browsers, also creates awesome animations with simple code.

To see what I've done with jquery, please visit my blog: blog.freelancer-id.com
Here are some:

• Easy Gallery: a jQuery Plug-in
• Scroll window smoothly in jQuery
• Top 5 jQuery image Galleries
• Catch keyboard events with jQuery
• jQuery Animate (tutorial)
• jQuery animate 2 (tutorial)
• jQuery image map

Also see my new work space: www.freelancer-id.com/blog/