I know that dotnetfunda.com is wanting to push the articles section so I was taking a look at it and I think that the organisation needs revisiting.
The asp.net category has over 200 articles in it whereas all the other categories have only a few.
I think this tells us that the asp.net category is too broad and should be broken down into more categories.
I think this creates a new problem though - if you want to browse a collection of this size and you want a specific topic then it becomes a guessing game trying to find that hidden sub category.
Personally I have feel that the best way to organise this kind of content is to do it with a tag based method. So instead of a hierarchy you would have a list of tags which you can apply.
This also creates a further problem - that users will end up creating many synonyms of tags such as "validator", "validation", "validators", "custom validation" and things like that.
It would require some work from one of the moderators to keep the tags clean.
An autocomplete UI can help with this problem so that uses are presented with the correct tag when they type "valid".
So anyway that's just some thoughts I had on organising the growing articles section - what does everyone think?