Hey guys,

I'm in a bit of a pickle - I'm really loving the user-friendlyness of sites that allow movable/drag-and-drop content in little containers that can be manipulated to their preferences.

E.g:
http://www.google.co.uk/ig?hl=en
http://www.start.com/3/
http://www.eurogamer.net/gamers
MSN Spaces/Live.com
...etc

I was wondering how to go about doing this - any useful tutorials/suggestions would be great, many thanks. Not too sure what to search for.

Regards,
jbcubed3