corlax

Running MaketPress Store and want to provide your user to publish product from frontend then this plugin will help you to do this. Just install activate and add your shortcode for start.
** Features:- **
<ul>
<li>Edit Post</li>
<li>Support Membership Plugin</li>
<li>Add Custom Field</li>
<li>Ajax Upload</li>
<li>Ajax Form Validation</li>
<li>disable Visual editor for content</li>
<li>enable Visual editor for excerpt</li>
<li>Help Text For Tag</li>
<li>Limit Number Of Post</li>
<li>Other bugs fixs (Category ajax error fix, PHP error, Login Issue, Change Submit Button Text)</li>
<li>Let User Submit Post From Frontend</li>
<li>Support Download File for digital download</li>
<li>support price and sale price (for discount)</li>
<li>Post Type and taxnomy Support</li>
<li>Publish post or Pending post</li>
<li>Enable/disable Captcha</li>
<li>Success Message</li>
</ul>

Marketpress Frontend

Running MaketPress Store  and want to provide your user to publish product from frontend then this plugin will help you to do this.

bluenet

Take MarketPress to the next level. As the name implies, MarketPress Product Importer enables users of the WPMU DEV plugin MarketPress, to quickly and easily import products to their online store, or product listing site. If you manage affiliate sites, you need this plugin.
When this plugin is activated, a new database table is created for storing the product data temporarily. In order to run the importer, that table needs to be populated with the users product information. I’m planning to integrate the CSV import directly into the plugin, but for now, I’m using <a href="http://bluenetpublishing.com/wp-content/uploads/2012/01/csvisual.zip" title="http://bluenetpublishing.com/wp-content/uploads/2012/01/csvisual.zip" rel="nofollow ugc">CSVisual</a>, an edited version of <a href="http://i1t2b3.com/2009/01/14/quick-csv-import-with-mapping/" title="http://i1t2b3.com/2009/01/14/quick-csv-import-with-mapping/" rel="nofollow ugc">Quick CSV import with Visual Mapping</a> by Alexander Skakunov.
Once the product data has been added to the (_mpimporter) table, the plugin will recognize it, and show the “number of products” available, as well as, an “Import Now” button.
Simply click the “Import Now” button, and the plugin will import your new products. NOTE: Data in the (_mpimporter) table is not deleted, so running the import again will just create copies of the products in MarketPress. I’m working on an update to handle this, so users will have the ability to update existing MarketPress products, without having a duplicate record created.
<h4>Currently Supported Features</h4>
<ul>
<li>Basic Product Data</li>
<li>Featured Images</li>
<li>Product Categories</li>
<li>Product Tags</li>
<li>Product SKU’s</li>
<li>Product Price</li>
<li>Product Sale Price</li>
<li>External Product Links</li>
</ul>
For complete setup and usage instructions with screenshots, visit <a href="http://bluenetpublishing.com/plugins/marketpress-product-importer/" title="http://bluenetpublishing.com/plugins/marketpress-product-importer/" rel="nofollow ugc">MarketPress Product Importer Development</a>.

MarketPress Product Importer

MarketPress Product Importer enables users to import products directly into MarketPress.  The best, free eCommerce plugin available for WordPress.

Marketpress Frontend vs MarketPress Product Importer