is STI the right way here?

I want to store information about links, podcasts, blogs, wikis .....

Each item will have a link, user_id, created_at, headline,
description...... additional a podcast item will have fields like
filetype_id, duration, mb..., blogs will have a additional field
like audience....

So my intention is to make a big table with the type field and use
STI.

Is this the recommended way to store such data or is there a more
elegant way to solve this?

Thanx

Raffaele Tesi schrieb:

why not a polimorphic association?

?? Never heard of this...