Blog Functionality Within N2 CMS

I've been using N2 cms for a couple of projects using some parts from their templates project but haven't come across a solid blogging component. Basically looking for something pretty simple that does tag, categories and multi开发者_如何学运维ple authors.

Has anyone built or used something I can plug in to N2?

If not how big a task do you think itd be to get something nice up and running?

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I think looking at the news example would be a good start - it has basic comment functionality.