Allow users to enter and edit data in one-to-many configuration
You can just alter the default user profile fields and add/remove whatever you want or use a plugin that does so. Alternatively you can use plugin like gravity forms or wufoo.
plugin-recommendation
Which plugin gives me pretty html syntax in the editor/dashboard? [closed]
Try http://wordpress.org/extend/plugins/syntaxhighlighter/
Making a particular kind of search engine with WordPress?
Look for business directory plugins in the WordPress repository.
Best Shopping Cart for WordPress [closed]
When I was deciding, I compared WooCommerce, Shopp, Cart66, WP-eCommerce and WooCommerce, and I found WooCommerce to be the most “WordPress” in its code and to be the most extendable/flexible. Products are custom post types, so you can leverage everything you already know about them, etc. It’s initially offering was really lacking in features like … Read more
Plugin to Link Posts by Title [closed]
SEO Smart Links does an amazing job for this. It provided exactly what I wanted. Originally, I used RB Internal Links. It only works through the visual editor, though.
Automatically send an email to list when blog is updated
There is a list of possible plugins here http://wppluginmarket.com/22984/email-mailing-list-plugins/. I responded to your other post too. You don’t say whether your ‘list’ is something you control, or whether users can subscribe to it. I don’t know mailpress well, in S2 one can manually add subscribers to the list (and not show the s2 subscribe widget … Read more
how do I create a breadcrumb to work with multiple custom taxonomies
The easiest way you can remember which taxonomy the user arrived through to a certain post is by storing it in a cookie. This is essentially what the Smarter Navigation plugin does, except it can handle all archives, not just taxonomy archives.
Hosting Requirements for a WordPress e-commerce site?
I would say for a small store stick with the basics, PHP 5.2.4+ and MySQL 5+ some individual plugins may require higher versions of PHP or MySQL. I don’t think you would necessarily need a VPS depending on traffic. My general rule start small, if you grow, great, most host (and all good host) make … Read more
Register User can post video [closed]
I would either create a custom post type, or a category (depends how you wanna organize it…custom post type would be my goto) to store the videos. With that in place, you can setup a form in your frontend, making it only visible to registered users, where they can do their video uploading (this functionality … Read more
Plugin recommendation for member management [closed]
Try out http://www.cozmoslabs.com/wordpress-profile-builder/ . It has front-end user registration with avatars uploads and user listing. The one thing that it doesn’t have is approve user before activating them on the site, but you can delete and edit users from the backend in the users section.