So I'm thinking of implementing tags on one of my sites. I know YouTube and alot of blogs use tags. However, how'd one go about the layout of such a feature in the database?

My guess would be to create a new table with three fields. The first field would probably be an id to satisfy the PRIMARY key. The second field would be the id (or other unique characteristic) of the item you are trying to tag. The third field is the tag value.

If you need help with the actual tag cloud itself, I just found this article today:
http://r2soft.blogspot.com/2007/12/h...h-formula.html