Adding Blog category to a news site?

Hey guys

So I've got a client, who wants to add Blog category to his News website. Basicly he wants to give his visitors the choice to make blogs on their own on his news site. The site is made in pure HTML, no wordpress etc. at all. So my question is - what kind of software does he needs so that the users can make blogs on his news site. Maybe we should have a custom made software or he can integrate already done software (and customize the theme so it looks similar to his news site), or something else?

Regards

Your best bet is to convert it to Wordpress and create a theme out of the current design. WP has a multi-user function for allowing blogging from any user. It is a bit of an in-depth project, though, and the only other way I can see doing this is a custom system set up which would be more costly.

I've done tons of WP conversions, so let me know if you need to hire someone for it. I'm on the cheaper side

I think what he can do is to install a wordpress in a sub-directory and link it from the main page, say with the link "Blog"
Then, he can continue to build his non-wordpress site and writes post in wordpress.
Of course, if he wants to have a link from the blog back to the main site, then, all he needs is some simple configuration on the wordpress config/header