JoomlaProdigy.com has just released jp Submissionary. This is a much enhanced version of the popular JA Submit component. Your visitors will still be able to submit articles to your site. But now as admin, you'll be able to view the pending articles and approve or delete them. The writer will receive an automated email, with the article's URL when the post is approved with the article's URL. And you'll be able to edit the email on the back-end.

New Features:
-The submit page no longer needs to be canceled if you want to move to another page.
-The submit button is at the bottom of the page, where it should be!
-A list of pending articles was added with the ability to delete or approve submissions.
-You can preview articles before you approve them, or edit them if needed
-Once you approve an article, an email notification is sent automatically to the writer to let them know it was approved.
-The email template include three variables: poster name, article title and article URL.

Older features:
-Enable or disable the Submit Rules.
-Enable or disable Images security check.
-Choose the image types users can upload.
-Auto-resize of images to your specified size
-Add up to 2 images, one for intro text, one for full text
-Select the max image file size and the auto-resize image size
-Select categories to which users can submit content.
-Enable or disable HTML Editor and define which WYSIWYG HTML editor to use.