WP-SMF-Bridge is a simple user registration and logon bridge between WordPress and Simple Machine Forum. To get this working, it is highly recommended that you have a fresh, unmodified install of SMF 1.1 or higher installed and running alongside an install of WordPress. It must be installed in a subdirectory under your WP install and should not be being accessed through a sumdomain. For example, if your website’s address is mysite.mydomain.com, your forums should be somewhere like mysite.mydomain.com/myforum. Also, WordPress must be able to access your SMF configuration files, otherwise it won’t work!
Please do keep in mind that this is a new plugin, and has not been thoroughly tested yet – and should probably not be used on a production website! I am not responsible for any data loss that might occur through your use of this plugin! Please see the plugin’s website for a bug-tracker and bug reporting system! If you find a problem, let me know about it so that it may be fixed. If you want to see a feature added, let me know about it so that I may add it!

SMF Bridge

User registration and login bridge between Wordpress and Simple Machine Forum

kochab

This plugin adds WordPress posts as topics in SimpleMachines Forum 1.1.7, and allows to put a link to this topic below the WordPress post for the user to add comments
More information on the plugin homepage: 
<a href="http://www.zonca.org/wordpress-post-to-smf" rel="nofollow ugc">WordPress plugin post to smf</a>
Main features:
<ul>
<li>SMF post is added when the WordPress post is published</li>
<li>SMF post is updated any time the WP post is updated</li>
<li>template function for linking from WP post to SMF post</li>
<li>link back from the SMF post to the WP post</li>
<li>it is possible to show on the SMF post just an excerpt </li>
</ul>
Admin page options:
<ul>
<li>SMF Board ID to post to </li>
<li>SMF User ID to set the post author</li>
<li>SMF Forum path and Url</li>
<li>Link from Forum to WordPress text</li>
<li>Max characters for SMF topic</li>
</ul>
If you use this plugin, please donate to support future improvements by clicking on the “Donate to this plugin” link

WordPress Post to SMF

This plugin adds Wordpress posts as topics in SimpleMachines Forum 1.1.7, and links the WP post to the comments in the forum

SMF Bridge vs WordPress Post to SMF