1

jquery modal dialog boxes

http://www.ericmmartin.com/simplemodal/

those are excellent dialog boxes for modal appearence

2

jquery super site

http://jquery.open2space.com/

jquery a good site with all options

3

Nice animations and many useful js like jquery

http://interface.eyecon.ro/demos/?page=demos

the same - drag and drop

4

jquery alret, confirm and prompt

http://abeautifulsite.net/notebook_files/87/demo/

simple and good

5

Flow Player - Excellent Javascript Anims

http://flowplayer.org/tools/demos/index.html

FlowPlayer - Excellent Javascript Anims

6

jalery jauery alert box smooka

http://www.smooka.com/blog/2009/02/22/jalert-jquery-alert-box-plugin/

jalery jauery alert box smooka

7

jquery ui dialog

http://jqueryui.com/demos/dialog/

jquery ui dialog

8

malsup jquery excellent

http://www.malsup.com/jquery/block/

malsup jquery excellent