The TDO Mini Forms WordPress Plugin allows you to create a form on your blog that allows people to write a post on your blog. Submitted entries are saved as drafts for your approval.
You will find this plugin useful if you run a blog that’s big on collaboration. For most of us, however, it’s probably a better option to accept guest posts the “normal” way, by setting up a contributor account, letting your guest writer write a post, then approving it.
It’s an interesting concept, though I’m not about to use this plugin on any of my WordPress-based sites. However, if you accept a lot of guest articles then this may save you a bit of time and effort.