[support] sub-sections for content types

[Mehul Ved]

Hi,
I am using drupal 6.x. I need to implement the following on my website.
I have a section called news. Now, withing News section, I need to
sub-divide it into various sections e.g. banking sector, hospitality
sector, food chain, etc. Users can browse through the news according
to the sections they are interested in or view all the news items.
How can this be achieved? Couple of possible ways we have been identifying are
1) A module to create sub-sections, then the user can be presented
with a list of sections to choose from.
2) Set up tags such that all the news will be tagged and users can
select from the tags.
Any way to implement this? Or any other way the idea can be implemented?
With Regards,
Mehul Ved.