Zack Katz

<blockquote>
<p><strong>This plugin requires a <a href="https://wordpress.constantcontact.com" rel="nofollow ugc">Constant Contact account</a>.</strong><br />
  <em>Don’t have an account?</em> Constant Contact offers a <a href="https://wordpress.constantcontact.com/email-marketing" title="Sign up for a free Constant Contact trial" rel="nofollow ugc">free 60 day trial</a>, so sign up and give this plugin a whirl!</p>
</blockquote>
<p><strong>Requires PHP 5.5</strong></p>
<h4>Fully integrate Constant Contact with your WordPress website.</h4>
<p>The Constant Contact for WordPress plugin is the best email marketing plugin for WordPress: integrate your website seamlessly with your Constant Contact account.</p>
<p>You can place a signup checkbox or list selection on your register page or use the signup widget anywhere in your website sidebar or PHP templates.</p>
<h3>Event Marketing</h3>
<p>The plugin features <a href="https://wordpress.constantcontact.com/features/event-marketing" rel="nofollow ugc">Constant Contact Event Marketing</a> functionality by allowing you to track events, registration, and registrants using the plugin. Simply navigate to Constant Contact > Events. Manage your events from inside WordPress!</p>
<h3>Built-in Form Designer</h3>
<p><strong>The Form Designer</strong> is a form generation and design tool. The Form Designer allows users to generate unlimited number of unique forms and gives a wide variety of options that can be configured, including what fields to show in the signup form. There and tons of design options, including custom background images, border width, colors, fonts and much more.</p>
<h4>Plugin features:</h4>
<ul>
<li>Add signup checkbox and list selection to your register page and update profile page</li>
<li>Add / edit contact lists without visiting constantcontact.com</li>
<li>Includes a powerful form designer</li>
<li>Built-in Google Analytics visualization</li>
<li>View your events registration details and get updated with a dashboard widget</li>
<li>Show contact list selection on register page with ability to exclude certain lists</li>
<li>Automatically subscribe your user to one or more contact lists on the register page</li>
<li>Customize the register page signup box (and list selection) title and description</li>
<li>Add / edit users from your Constant Contact account</li>
<li>Add a signup widget to your sidebar or anywhere in your template</li>
</ul>
<h4>Plugin Support</h4>
<p>To obtain support please use this link to the <a href="https://wordpress.org/tags/constant-contact-api" rel="ugc">WordPress forums</a>.</p>
<h4>If you like the plugin…</h4>
<p>If you use the plugin and find it useful please make sure to come back and vote so other users know it works.</p>
<h4>Translate the plugin</h4>
<p>Want to see this plugin in your language? <a href="https://www.transifex.com/projects/p/constant-contact-wordpress/" rel="nofollow ugc">Join the translation team</a> and help translate it!</p>


Constant Contact for WordPress

Integrate Constant Contact into your website with this full-featured plugin.

Ashton Paul

elementsweb

<p>The Simple Constant Contact Plugin is a quick and easy plugin to interface with your constant contact account. It takes the visitor’s name and email and allows it to send that information directly to your Constant Contact account. Set up is easy. Just follow the instructions in the admin menu and you’re on your way. The UI was left raw with class and id tags so you can apply your own styling to match your current theme.</p>


Simple Constant Contact

currently says this:
-------------------------
		function simpleCC_display_form() {
			// test to see if all the settings are correct
			if ($this->ready()) {
			?>
			<div class="simpleCC_plugin">
				<form class="simpleCC_form" id="simpleCC_form" method="post">
					<label for="simpleCC_fname">First Name:<input type="text" id="simpleCC_fname" name="simpleCC_fname" /></label>
					<label for="simpleCC_lname">Last Name:<input type="text" id="simpleCC_lname" name="simpleCC_lname" /></label>
					<label for="simpleCC_email">Email:<input type="email" id="simpleCC_email" name="simpleCC_email" /></label>
					<button id="simpleCC_submit" type="submit" name="simpleCC_submit" value="simpleCC_submit_successful">Submit</button>
				</form>
			</div>
			<?php
			}
		}
--------------------------------
but should say this:
-----------------------------------
		function simpleCC_display_form() {
			// test to see if all the settings are correct
			if ($this->ready()) {
return '<div class="simpleCC_plugin">
				<form class="simpleCC_form" id="simpleCC_form" method="post">
					<label for="simpleCC_fname">First Name:<input type="text" id="simpleCC_fname" name="simpleCC_fname" /></label>
					<label for="simpleCC_lname">Last Name:<input type="text" id="simpleCC_lname" name="simpleCC_lname" /></label>
					<label for="simpleCC_email">Email:<input type="email" id="simpleCC_email" name="simpleCC_email" /></label>
					<button id="simpleCC_submit" type="submit" name="simpleCC_submit" value="simpleCC_submit_successful">Submit</button>
				</form>
			</div>';
			}
		}



shortcode function is supposed to return a string

Simple Wordpress Constant Contact Plugin to take name and email and allow to send that information straight to Constant Contact

Constant Contact for WordPress vs Simple Constant Contact