Mahfuzar Rahman

The MailChimp plugin allows you to quickly and easily add a signup form for your MailChimp list as a widget on your WordPress 2.8 or higher site.
Not sure what <a href="http://www.mailchimp.com/features/full_list/" rel="nofollow ugc">MailChimp</a> is or if it will be helpful? Signup up for a <a href="http://www.mailchimp.com/signup/" rel="nofollow ugc">FREE Trial Account</a> and see for yourself!
After Installation, the setup page will guide you through entering API information, selecting your List and then add the Widget to your site. The time from starting installation to have the form on your site should be less than 5 minutes – absolutely everything can be done via the WordPress Setting GUI – no file editing at all!
<h3>Developer Mode</h3>
You can enable “Devleoper Mode” by adding the following line to your <code>wp-config.php</code> file just above the “That’s all, stope editing!” line.
<pre><code>define('MAILCHIMP_DEV_MODE', true);
</code></pre>
This will enable the MailChimp List Subscribe plugin to operate without the need to connect an external MailChimp Account, and will provide a 
subscription form widget that will not actually submit anywhere.
This will allow you to style and configure the widget in non-production environments that are not publicly accessible.
For more Developer Mode customization options see the following article:
http://connect.mailchimp.com/how-to/how-to-article-configuring-developer-mode-for-the-list-subscribe-wordpress-plugin

Easy Mailchimp Optin Form

The MailChimp plugin allows you to quickly and easily add a signup form for your MailChimp list as a widget on your WordPress 2.8 or higher site.

Fetch Designs

This plugin lets you quickly and easily set up sign-up sheets on your WordPress site. Use it for volunteer and time slot sign-ups, personnel and resource coordination, and much more.
The free version of Sign-Up Sheets includes the following features:
<ul>
<li>Administrator can add, edit and clear sign-up spots as needed – add/edit is NEW as of version 2.2.9</li>
<li>Copy a sheet or a task to a new one</li>
<li>Confirmation emails on sign-up</li>
<li>Allow logged-in users to see all the tasks they’ve signed up for on one page using the <a href="https://www.fetchdesigns.com/doc/user_sign_ups-shortcode/" rel="nofollow ugc"><code>[user_sign_ups]</code> shortcode</a>.</li>
<li>No limit on the number of sign-up sheets and sign-up spots</li>
<li>reCAPTCHA (optional) – NEW as of version 2.2</li>
<li>Export sign-up information for a single sheet or all sheets to a CSV</li>
<li>Supports WordPress <a href="//www.fetchdesigns.com/doc/gdpr-sign-up-sheets-wordpress-plugin/)" rel="nofollow ugc">GDPR privacy features for your sign-up sheets</a></li>
<li>Developed with accessibility in mind based on <a href="https://www.w3.org/WAI/standards-guidelines/" rel="nofollow ugc">WCAG Guidelines</a>. If you run into any accessibility issues, <a href="https://www.fetchdesigns.com/contact" rel="nofollow ugc">please report them</a> to help make the plugin more inclusive for all users.</li>
<li>And much more… <a href="https://www.fetchdesigns.com/sign-up-sheets-wordpress-plugin/" rel="nofollow ugc">full list of Sign-up Sheets features</a></li>
</ul>
The Pro version of Sign-Up Sheets includes the following features:
<ul>
<li>Ability to create <a href="https://www.fetchdesigns.com/doc/custom-fields/" rel="nofollow ugc">Custom Task fields and Custom Sign-up form fields</a></li>
<li>Automatically sends reminder emails before an event (optional)</li>
<li>Allows customization of the confirmation and reminder emails per sheet</li>
<li>Assign <a href="https://www.fetchdesigns.com/doc/sheet-categories/" rel="nofollow ugc">categories to sign-up sheets</a> and display a list of current sheets for a specific category.</li>
<li>Logged-in user can edit their own sign-ups</li>
<li>Spot Locking – Locks and holds a spot for 3 minutes when a user accesses the sign-up form (optional)</li>
<li><a href="https://www.fetchdesigns.com/doc/compact-semi-compact-standard-display-modes/" rel="nofollow ugc">Compact and Semi-Compact display modes</a> to condense tasks with a large number of spots into a single line (optional)</li>
<li>Enable sign-up limits per task</li>
<li>And much more… <a href="https://www.fetchdesigns.com/sign-up-sheets-wordpress-plugin/" rel="nofollow ugc">full list of Sign-up Sheets features</a></li>
</ul>
Sign-up Sheets is currently being used by organizations and businesses for non-profit and church volunteer opportunities, schools and PTO/PTA volunteering, club sign-ups, photographer and meeting room timeslot sign-ups, and more. It’s a great alternative to monthly paid services like SignUpGenius and allows you to control your own sign-ups right on your WordPress site.

Sign-up Sheets

An online sign-up sheet manager where your users can sign up for tasks.

Easy Mailchimp Optin Form vs Sign-up Sheets