tags / links with jquery

tags / links with jquery

Hi:

I'm a newbie with jquery.
I've seen forms in some websites that allows a user to enter data in free form and links those attributes together.
For example in the area for 'interests', the user could enter stuff like ' swimming, squash and running'.
Then hyperlinks appear under 'Swimming' 'Squash' and 'Running'. Once you click on those links... people with those common interest are returned.

I'm assuming that it does call a database, could this be achieved with jquery ? if so how? or are there jquery libraries written already for this operation.

Cheers
Juan